One huge distinction to raise here is that free speech is a protection between the individual and the state. Corporations are free to regulate speech on their own platform, especially when users agree to terms of service that stipulate as much.

We can debate where the line on regulation should fall, but that isn't a free speech debate.

At the same time, the people can petition the state to regulate corporations use of our speech, and generally our data

They have been abusing their power, something has to change