So, the issue is not that these websites are censoring.

Facebook, Google, Twitter, and all are effectively like communication utilities. It's like saying, should the phone company be allowed to turn off your service because they don't agree with you politically? No, because there really is no alternative with the same type of reach.

So, yes, they need to be allowed to operate as companies, but need to be treated as utilities where they provide the access, connection, platform, but bear no control over what is posted, beyond discussions of illegal activity.