How far do you want to take this? Criticizing someones religion might hurt their feelings but greatly benefit the society and democracy. Does it mean that critique of a religion or religious sects should be banned or should we just prohibit the critique or those which proponents are most vocal, intolerant or justifying to literally turn to violence about their religion?

I think that one should be clear here and distinguish between slander/defamation of a person and speech that "hurts someones feelings". If I criticize the ideas that you hold and it hurts your feelings it's is not a mental abuse if you start to interpret it that way it's your fault and should seek the psychiatrist. There is a real danger that we keep redefining words: hateful speech, mental abuse. Ideas are not people, religion is not an ethnicity, your beliefs are not sacred. What is a form of mental abuse btw is indoctrinating your (or someones) children, meaning religious schools are a form of mental abuse, sending your kids to a political party camp or enforcing your particular ideology on them is a form of mental abuse etc. But somehow everyone keeps ignoring it, it's not my kids so why should I care; I regard it as deeply hurtful for society.