It clearly is, what else would one call that? Perhaps it's censorship you agree with and others agree with and maybe I agree with some of it, but it's never the less censorship. It's also censorship when the government redacts documents, but we have granted the government some carve-outs in order to protect national security and other things, which over time has become abused just like your proposition would be abused.

Also, language is not harmful. It may be abusive or offensive but it's not harmful. That's not to say people don't allow themselves to become affected by language --but one can be negatively affected by lots of language that isn't "hateful" but may be truthful or carry unwanted information.