What is the remedy for government colluding with private business to censor speech?

It's clearly a violation of the first amendment. There has to be a remedy for crimes by government actors colluding, cajoling and/or threatening media and tech firms to censor or suppress speech, right?

Additionally, the Cybersecurity and Infrastructure Security Agency on the surface appears to have a benevolent charge.

quote:

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CISA works with partners to defend against today’s threats and collaborates to build a more secure and resilient infrastructure for the future.

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Those partners are Big Tech. LINK

But the question is around misinformation, disinformation and malformation. Do these categories even exist in a free speech society? For example my information could be categorized as your disinformation. Who's right?

I mean, I could potentially be thrown in jail at most or my post removed from social media sites for proclaiming the earth revolves around sun if CISA characterized that information as mis, dis or malinformation. Or I could potentially have my post removed and subsequently be attacked by the social media mob and my business ruined because I made a post on social media saying that vaccines should prevent you from catching the diseases you are vaccinated against if CISA deemed that mis, dis, or malinformation.

That fact that CISA explicitly says they work with Big Tech to control mis, dis and mal information is clearly a first amendment violation and unconstitutional, right?