I wrote about this last year:
https://fightthefuture.org/article/the-new-era-of-corporate-...
It's easy to side with CloudFlair when they go against a site like The Daily Stormer (Which is so out there it might just fall into Poe's Law).
The fact is that most decent hosting is only available in a handful of industries. Even the CF CEO has had misgivings of his decision and it gets us into a really questionable space.
Platforms should be free to do what they want right? They should be able to deny customers .. just like an airplane company should be allowed to keep people who crazy political opinions from boarding plans right? .. oh and black people too. Oh wait..what?
The freedom of speech in the US is pretty limited to government censorship. But we don't let businesses do whatever they want. They can't keep a certain ethnic group from eating at their restaurant, and in many states they can't choose if their venue allows smoking. The big question is, does speech need to fit into this same framework?
With the recent child protection act that gutted craigslist and took down backpage (an act that is leading to more violence against sex workers in the US and an act that the EFF and ACLU are actively fighting as being unconstitutional), we see the US government holding content hosting companies liable for the criminal actions of their user base. That is disturbing and already a form of government control over what customers a business is allowed to have.
It'd be one thing if censored sites could just go to another provider, but there are only a couple of big providers and their mass has the ability to crush anything they find questionable.