No providers willing to host them seems to be a deal breaker.
Perhaps you know some way to be on the internet w/o an actual internet provider?
usenet newsgroups
Depends what you mean by "internet provider". If you mean a hosting provider, that's pretty easy. Anyone can host themselves and do away with the likes of GoDaddy.
I believe that Free Republic is self-hosted, and isn't relying on a big hosting service like Google, Microsoft or GoDaddy.
"Host" just means that you have a computer with an IP address that is running, at minimum a HTTP server.
The minimum you need to be on the net is to get your name registered, which requires a domain registrar. There are a lot of them besides the big ones that a lot of people use. A lot of the hosting companies (like GoDaddy) are also Domain Registrars.
That's a particularly bad set-up for anyone who has controversial content. If GoDaddy or Google decides to drop you, you will lose your site and your domain name (if they decide to confiscate it, which is what happened to Andrew Anglin ).
There are a lot of domain registrars all around the world. I believe after his first banning he was using one in Russia for a while.
Gab's domain is now registered with Epik, after they were kicked off a couple others.
Here is the article where the owner of Epic explains why he feels strongly about providing the service to Gab:
So far common carriers and cable companies haven't tried to turn off internet connectivity for people running sites that people object to. At least not that I'm aware of. By mirroring that could be made pretty ineffective anyway.
I'd bet that POTUS, Q and the military could figure that out.