Please read with greater care.

Harm can often be justified. If someone engaged in a violent murder and I accuse them of such an action, the statement harms their reputation. However it is also true and therefore of net benefit.

Also being shown and told that a person is being ridiculous can be beneficial to a person. I really shouldn't need to elaborate on this.

You are engaging in hate speech, and are thus part of the problem. End of story.

And you wish to protect people from criticism who advocate and engage in acts which are ridiculuous, untrue and physically damaging towards others. That is a much greater problem.