Is censorship in America getting close to matching censorship in China?

No; for example you can protest the government in America whereas in China you would be arrested for it. You can believe in kooky Alex Jones conspiracy theories in America – but in China you would be tortured and have your organs ‘donated’ ala Falun Gong practitioners. You are allowed to play games and watch movies with violent and sexual content in America whereas you would have to do so illegally in China via torrenting. In America you are allowed to visit Chinese websites without a VPN – in China you cannot visit foreign websites without a VPN. In America you are allowed to make fun of Trump on twitter and spread memes about him – in China any spreading of negative posts on Xi Jinping will be scrubbed. So no… its not getting close.