Freedom of expression is highly important.
All minds should be free to express their opinion and desire towards what they like and dislike, agree and disagree with, desire and don't desire, but then, of course there will be responsibility towards one's action and the consequences of action.
Freedom to protest against certain issues or things that certain minds dislike, disagree with and don't desire being performed in a reasonable constructive way with the intention for achieving better improvement and constructive development in everyone and in the world, is highly important for looking after the overall welfare of everyone and the surrounding environment.
However, under the influence of ignorance and egoism, protest of any kind, or in another term, reaction towards something that the minds dislike, disagree with and don't desire out of dissatisfaction and anger, either intentionally or unintentionally generating disturbing behaviors and destructive actions that are causing disturbing and destructive consequences into the world that affect everyone else in order to achieve one's desire, or to hurt something that is going against one's desire, is a destructive way of freedom of expression.
Freedom of expression doesn't mean that out of one's dissatisfaction and anger towards something that one dislikes, disagrees with and doesn't desire, anyone can do anything that would cause hurt or damaging impact onto some others or the surrounding environment.
There's neither right nor wrong in having disagreement. None should be
blind-agreeing/disagreeing with everything. Unfortunately, most disagreements would
lead towards dissatisfaction and anger under the influence of ignorance
and egoism. And if without correct understanding and self-control, it
leads further towards chain reactions of damaging behavior and destructive consequences
onto oneself and/or others.
Just as how the annoyed, frustrated, dissatisfied and angry parents would react towards what they think and believe as 'disobedience' or 'mischievous' of their children who behave in the way that they don't like, don't agree with and don't desire, and out of those impurities arise in themselves, the parents would be verbally, physically, mentally and emotionally hurting their children in certain way, to release their frustration, dissatisfaction or anger, with the justification or excuse of disciplining and punishing their children for their behavior that they perceived as 'bad' and 'wrongful', which actually merely is about themselves are being unhappy and angry towards something that they dislike, disagree with and don't desire. It's not necessarily that there's anything bad or wrong with their children or their behavior.
Out of anger and dissatisfaction under the influence of ignorance and egoism towards something that "I don't like", "I don't agree with" and "I don't desire", people would be reacting and performing actions aggressively or violently that the minds think and believe as 'a form of righteousness, power, strength and in control' by causing intentional or unintentional disturbance and damages to other lives, things and the surrounding environment, while the minds would still think and believe that "I am doing this for the goodness of everyone and demanding positive improvement in the overall welfare of the world." How true is that?
Freedom of expression to express opinion and desire towards disagreement in a way under correct understanding and emotional maturity that would lead to possible constructive improvement in everyone and the surrounding environment, is in line with "Upholding goodness and demanding positive improvement in the overall welfare of the world".
Freedom of expression to express opinion and desire towards disagreement in a way under dissatisfaction and anger that would lead to possible disturbance and destruction in everyone and the surrounding environment in order to gratify one's desire or demand that "I like and agree with", is nothing to do with "Upholding goodness and demanding positive improvement in the overall welfare of the world".
Freedom of expression and action that bring more peace and harmony into the world, or freedom of expression and action that bring more unrest and destruction to oneself and others?
Freedom of expression and action is neither good nor bad, but depending on the different states of the minds, that generates what kind of actions/reactions and consequences.
All minds are free to express what they want to express, and to desire what they like and agree, however, how others react or don't react towards their expression, as well as whether their desire towards what they like and agree with demanding from others will be gratified, or not, is others' freedom on their reaction or non-reaction, as well as whether to give others what they desire, or not. Unfortunately, in most protests, the protesters have the expectation towards receiving certain 'reactions that they expect to be receiving from certain people or some other people', as well as there's expectation towards getting all their desires being gratified as how they expect it to be. And when their desire and expectation are not being gratified the way that they expect it to be, there's disappointment, dissatisfaction and anger. And if without self-control, these unhappy minds would behave violently and destructively out of disappointment, dissatisfaction and anger, reacting spontaneously towards what they don't like, don't agree with and don't desire. Even so, that's their freedom of action/reaction/behavior, even if the consequences of such reactions are not nice and are affecting other lives in the surrounding environment.
All minds must develop correct understanding and self-control in order to achieve peace and harmony in the world among the vast diversity of many different backgrounds, influences and desires towards achieving a world that different individuals and communities would like it to be. Unfortunately, even though it's not impossible, it's difficult to achieve that in this world of selflessness and impermanence as most minds are under the influence of ignorance and egoism.
Embracing and accommodation towards names and forms that are different from oneself/one's community is the only way for achieving peace and harmony in the world of diversities. Discrimination and rejection towards names and forms that are different from oneself/one's community will only lead to further unrest and suffering in all and everyone.
Separateness/discrimination/oppression/selfishness will only lead towards destruction of humanity and peace. And that's the world is heading to, even when there are some people trying very hard to save humanity and to achieve world peace, because there are more and more human beings in the world are leaning towards separateness/discrimination/oppression/selfishness due to survival instinct under the influence of ignorance and egoism, either intentionally or unintentionally, under the name of saving humanity and achieving world peace (the way that they desire based on their particular social/political/religious/cultural thinking, belief, values and practice).
Reflect and inquire towards everything. Inquire towards "Being angry while hurting people and damaging things out of anger doesn't change the world to be a better place." Realize what is "Constructive disagreement and protest without anger, violence, aggressiveness, destruction and hatred."