> Or we could encourage a proliferation of choices on the internet, rather than handing whichever party is in power the right to suppress the speech of the other.

I'm talking about preventing Google from exercising that power, not giving that power to the government. No one is proposing to repeal the first amendment.

I'm very much in favor of a proliferation of choices on the internet, but we don't really have that at the moment, and we need regulations that cover the situation we actually find ourselves in, not the ideal situation.

I’ve already made this point at least twice; getting the government involved in preventing Google from moderating content is giving the power to the government. Unless if you want to completely ban the ability of Google to moderate anything, then you are giving the power to someone to decide what is and is not protected from moderation on Google. This power to decide what is and is not immune from moderation would be hugely powerful, and would give the ability of the government to declare which ideological believes are and are not protected from moderation; which in effect would be hugely detrimental to the first amendment.

And even if you strip Google’s immunity from civil damages away, you are handing power over all internet speech over to the courts and anyone with enough time and money to use them. From a citizens perspective there is very little difference between censorship via the first or third branch of the government; both represent the erosion of the first amendment.

Similar regulations have existed in the past (common carrier and the fairness doctrine, for example) without giving the government the power to "declare which ideological believes are and are not protected from moderation".

The fairness doctrine was only constitutional because there were a limited number of channels (Red Lion Broadcasting Co. v. FCC), and it was impossible for anyone else to create one due to FCC regulations. I genuinely doubt that it would be constitutional today with cable television, let alone the internet.

I'm not proposing that we reestablish the fairness doctrine, just using it as an example of similar government regulation in the past that didn't have the disastrous effects you predicted.

But since you brought up the limited number of choices, I would like to mention that we find ourselves in that situation again today in the smartphone and online video markets, although for different reasons. And that's relevant because regulation is only necessary when the free market fails to provide the choices and freedoms we expect.