If you tried to take your position to a court in the US, even now, you'd be treated as a frivolous litigant... which, to be clear, means being told to fuck off and not come back.
Please stop posting this kind of ignorance. It burns.
Nobody is throwing anybody in prison, nor threatening to.
One of the reasons the First Amendment applies only to the government is that, unlike an app store, it can throw people in prison.
But we're talking about F-Droid here. It has a tiny market share. It uses software that lets literally anybody else set up a repository and have it appear integrated in the same app. It doesn't benefit from any of the legal or social advantages given to large corporations. F-Droid, unlike Apple or Google, can't in fact do much to limit anybody's speech.