Answer:
Hate speech criminalization is a major limitation on speech.
Diversity people are granted special protection by big government so as to prevent their hurt feelings and prevent them from reacting with violence toward a hate speaker. If a Diversity person or a hate speaker react with any form of violence, only the hate speaker is necessarily subject to government prosecution for hate speech. The intent of hate speech criminalization is to chill criticism of Diversity people.
Another limitation on speech is free speech zones designated by big government. Outside a free speech zone a speaker is subject to arrest and prosecution.