I love that I managed to guess quite a few of these
AwakenedAce
Well I'd say most of them are federated together, or at least those with a good amount of users. In practice you don't really get islands other than I guess troll instances that everyone has blocked.
And AFAIK as long as an instance isn't blocked by yours (and vice versa to be useful), you can follow a person on that unfederated instance and it should just work and get federated.
Wait is something like that actually in Project 2025?
The way I understand it is that they can relicense it and then publish it if they want, but the GPL would still fully apply to the previous versions.
The first question you cited seems to refer to any different organisation/individual making changes to the source code. And the second seems to refer to revoking the GPL for an already released version, which they would of course not be allowed to do.
This would make sense as ownership of the copyright would supersede a license.
The 4B movement in South Korea is meant to oppose their patriarchal state because they don't want to be viewed as reproductive tools.
On the other hand the movement you're talking about is meant to "protect" against feminism and oppose a supposed bias against men in society, which is ludicrous when you consider that women are discriminated against much much more to the point it's not even comparable. It's just a misogynistic movement.
So no, this isn't hypocrisy, these are very different.
Now, if men made a movement to protest gendered expectations or real problems without jumping through a thousand hoops to blame feminism, and without its logic being based in misogyny, I think that would be better received.