This is an extremely frightening statement to me. I'm terrified by the fact that you'd paint me as a Nazi sympathizer because my meta-level beliefs that text and speech should be protected are stronger than my object-level beliefs that Nazi philosophy is evil.
The Nazis are not reviled today because they had disgusting beliefs. They're reviled because they actually murdered millions of innocent citizens.
I'm okay with neonazis saying disgusting things, as long as they play by the rules and don't commit any violence. (Hell, people brought AK-47's and AR-15's to Charlottesville but didn't use them, despite the violent clashes.) Whatever happened to "sticks and stones"? Do kids not learn that mantra anymore?
To be clear, this is a separate question from whether major internet infrastructure providers should be considered de facto public systems and fall under the 1st amendment. I don't think they should, so I think this falls within Cloudflare's rights (although I wish they had done otherwise). I'm just objecting to the characterization that the only people who could possibly object to Cloudflare here are neonazis or their sympathizers.
For what it's worth, I tried to find the Daily Stormer site to see what it is they actually advocate for, but I was unable to. I'm not sure if it's because of the domain name issues, Cloudflare, Google search or what, but it's a little disconcerting to me that ideas can be so easily expunged from the internet. So much for the "right to forget" controversy - I guess it is possible after all, if the companies were motivated to do so.