>Twitter serves as the de facto public town square, failing to adhere to free speech principles
Only virtually. Twitter is a privately owned company, in reality they can delete any one of your shit posts whenever they want. They are not bound by law to store your data for eternity. They are not bound by law to purchase/manage more storage space just so you could upload your shitty data for eternity.
Imagining that they should be required by law to share their private property kinda sounds like a slippery slope to Communism.
''We The People'' are still free to go to the town square in reality and talk all the shit we want to.