What you don't seem to be able to differentiate, not unusual for a Euro-centric view, is that you can indeed talk about whatever you want in public - but the platforms you despise are not public - they are privately owned and operated platforms which provide a degree of public discourse.

I can stand outside on the street corner in any street in LA with a sign in my hands that says "JAIL OUR WAR CRIMINALS" any time of day .. but if you try to do that in Berlin, Paris, Amsterdam, you will get a visit and told to move along.

I say this on the basis of direct personal experience in all cases. It is far, far harder to protest the Gaza genocide than it should be - in both the US and Europe, to be frank - but in the US I at least have the courts to resort to if someone comes and smashes my signs.

That's my point, US bans free speech through property ownership. Just because you banned speech through property ownership rights doesn't mean you have not banned it. Free speech is non-existent on US platforms and in US it is tucked away so it is impotent against the current ruling class.

In Berlin, Paris or Amsterdam you won't be visited by the police for a sign that says "JAIL OUR WAR CRIMINALS", you will be visited for one that says something like "Finish the work Hitler started" or "Burn the Mosques" and depending on the context nothing will happen or you may get fine or jail sentence.

In US you will have much more trouble for your undesired speech than in Europe, just more indirectly.