There is no first amendment right to have your comment visible on Youtube. In fact, Youtube has the first amendment right to show whatever comments they want.

There is no first amendment right to have your comment visible on Youtube. In fact, Youtube has the first amendment right to show whatever comments they want. They could even have fake accounts that post positive comments and upvotes, and charge users money for artificial engagement. Google executives could decide that they wanted to support literal Nazis, and promote their videos, add fake likes and engagements, and do the opposite to any opposing political views. This would all be perfectly legal. We have restricted the constitutional rights of corporations in other cases e.g. utilities, though. And we can do it again.