There’s plenty of existing examples of compelled speech. We could simply say, “you cannot run a public/large forum without allowing mostly free speech”.
I think the compelled speech argument is extremely weak, we have very narrowly defined and specific cases in strictly defined circumstances. This would make it the default for vast swathes of common communications and as I pointed out introduce huge problems with noise, spam and griefing.
That mostly leaves Alibaba Cloud (I have no idea if it is available outside China) and "Others" - so a 43%. Not much to choose from considering that the big players have the best prices.
The right of free expression is guaranteed by the first amendment by restricting the government from infringing upon your right. It doesn’t say the government or anyone else has to give you a microphone.
In order to ban me from a platform you have to take (negative) action towards me. My content is already on that network. Compelling to respect my rights means compelling a company to not negatively act against me.
Those businesses are also free to close up shop if they can’t handle it. If they are dumb enough to explicitly say they don’t want to do something for a certain legally protected class of individual solely due to their belonging to that class, then IMO they deserve to lose their shirt.
That would amount to involuntary servitude, which is not permitted by the 13th Amendment.
Section 1. Neither slavery nor involuntary servitude, except as a punishment for crime whereof the party shall have been duly convicted, shall exist within the United States, or any place subject to their jurisdiction.
Section 2. Congress shall have power to enforce this article by appropriate legislation
Why not? Private companies must respect your rights, like your right not to be discriminated against, so why can‘t they be forced to respect your right to free speech? Just because the status quo of the legal ecosystem is not ready to handle this edge-cases doesn‘t mean it can‘t be made to do it with some adjustments.