The natural right to free speech is so important that it is explicitly called out in the very first of many constitutional amendments, which makes it fundamental to the USA.
It's really not unreasonable to refer to somebody who disagrees with this fundamental natural and human right, which has been a tradition in the USA, as being "anti-American".
Nobody has a right to be free from speech or ideas they disagree with.
Which has nothing to do with this case. It’s some people simply saying they won’t work with a company while it supports something they find unethical. Taking away somebody’s opportunity to use a private platform is not even close to taking away their right to free speech.
And the right is very comfortable suppressing speech when it comes to their boogeyman du jour, "CRT".
That said, of course censorship is a dangerous thing but some "free speech" is also dangerous in itself. Right-wing talk radio and Fox have engaged in speech designed to cause division and hate in America. It's covert hate speech and I'm not suggesting that it be censored but it sure as hell should not be celebrated.
When people make assertations about free speech and "disagreeable" content it grinds my gears. It's one thing to say that Nickleback is the best band ever and another to say that all Mexicans are rapists, drug dealers, and/or murderers.
I do understand that censorship is a dangerous thing, but we're also playing with fire by giving megaphones to hatemongers. It's my (obviously limited) observation that a solid chunk of the American public would be fine with exterminating "the others" if it was allowed to happen. That isn't by happenstance and it shows no signs of abating (quite the opposite really).