The problem here isn’t censorship by private companies on their own property. It’s monopoly and lack of diversity on the Internet, which WE as users contribute to every day.
With respect, while everyone is quick to cite the Freedom of Speech amendment, I have never seen anyone talk about property rights entrenched in your constitution, which, by extension, gives entities the right to control who uses their property.
If you come to my house and piss in my flower pot, you are leaving. That’s my right. Same as Facebook, LinkedIn , etc.
If you want to break monopolies, do that, but don’t violate the constitution’s property rights.