> either all speech is free or no speech is free.
That simply not true, it's the slippery-slope fallacy. Observe: "When you let them take away any weapons, they'll take away all the weapons. Therefore, it should be my right to own nuclear weapons".
> We have now 2 internet service providers ....
Domain registrars are not ISPs in any sense of the word, least of all the net neutrality sense of the word.
> Nazi's didn't rise in germany because they were allowed a platform to speak from, they've risen because they've silenced anyone who opposed them.
The two parts of that sentence directly contradict each other. The second part is (Not allowed free speech -> Inability to gain power).