Do you find these mind-blowing?
As for self-hosting GitHub, yes, that's much more viable and I believe more of us should be doing it (although I personally plan to still have GitHub as a central source of truth and just backup all my repos to several servers under my control). But GitHub is also very socially entrenched and provides a real value-add in terms of good PR interface, Wiki, issues, discussions and whatnot.
(And I'm not counting GitLab, it's worse in almost every way. And is very slow.)
We're way past idealistic slogans. Be the change you want to see. Give example to the rest of us. Many will follow.
In the meantime, I want my free time mostly free of computers.
FWIW, I like (and pay for) sr.ht even though it doesn't have feature parity with GH.
Hate to be that person, but GitLab is better than GitHub at everything. UX is different in some places, and it's an entirely subjective question which one is better ( i prefer GitLab but to each their own), but in terms of features it isn't even close - GitLab absolutely blows GitHub out of the water, even with Microsoft's incredible investment and recent deluge of announcements. In terms of speed i think GitLab is slower while doing some things, but it's not ( at least for me) painful like Jira Cloud is.
I manage GitLab just fine but it's way too slow for me.