Censorship can come from anywhere. But I can choose to visit YouTube, FB, et al, or I can choose to go to a different platform, though it may not be as populated or as polished as the former. It's much harder for me to choose a govt which doesn't censor or enforce censorship.

The govt controls many aspects to out lives.. The police can come to my house and take away my children if I tell them being gay or transgender are mental health issues. YouTube can only kick me off for stating such.

The govt also can censor based on which grants out gives funding for. Another reason academia is broken.

They are some real reasons to fear censorship.

As a private company, YouTube can choose what it wants to host and/or promote. No one is preventing the purveyors of toxic videos from making and distributing them on their own.

Definitely with limitations. For example a cake maker can be compelled to bake a cake for a gay wedding. You don’t think a private company can be compelled not to censure?

For what it's worth, the cake maker won that case at the Supreme Court. So they were, in fact, not compelled to bake a cake for a gay wedding.

https://www.bbc.com/news/world-us-canada-44361162