When you let people be anonymous, they start being assholes because they suddenly don’t think they’re people talking to people anymore. Why do you think Facebook doesn’t allow anonymous accounts? It’s because they understand that anonymity encourages people to be horrible to everyone, lowering the tone and making everyone feel bad.
4chan influences children to not take responsibility for their actions. 4chan influences children to be offensive with no consideration to the consequences because they have a sense of entitlement.
No, you’re not entitled to mock anyone for being “different”.
You’re not entitled to say horrid things to people that you don’t have the courage to say to them in person. 4chan is full of cowards, a trait found in many racists.