It is going to fly as long as the First Amendment is worded to protect you from the government.
Do you really think a Twitter ban is equal to the US government muzzling you? Or do you simply see the alternatives as not good enough and feel like folks are entitled to posting tweets?
Regardless of your (or my) opinion, Twitter is not and will never be a public service provided to you by the US government. you have no right to free speech on their platform. you are welcome to create your own centralized rival service and allow all the hate speech and abuse you want. Twitter and the like are simply not obligated to tolerate you or anyone else being a prick, just like a private message board is not obligated to tolerate the same thing.
So, yeah, I can tell you that. It's not an arguement, facts rarely are. Thems the breaks.