If you don't like Facebook, don't use it. If you're upset that AWS kicked Parler off their platform, stop supporting Bezos (Amazon, AWS, Washington Post, whatever rocket ship company he owns, etc).
But realize no one is obligated to build out technical platforms for you. It's not any more of a 1st Amendment / free speech issue that if I argued that Rokslide was obligated to carry whatever comments I want to make here, even if I was saying that pedophilia should be mandatory or any other crazy shit.
Parler got deplatformed this week because it was allowing people to openly call for overthrowing the government and assassinating the Vice President for being a traitor. Regardless of how angry you are about the election or how much you like Trump or hate Biden, no one with a real job and real assets and a real business wants to be associated with hosting or promoting that.