Some package managers do have differences that justify a separate project (nix, gentoo’s portage, etc).
For others, sometimes package managers are very similar feature-wise. But some developers would rather remake the thing because they would understand their code a lot better than someone else’s. Or because it would be far easier for them to customize rather than extend another project.
Imo it is developer laziness. Being able to use other people’s work is a valuable skill. But then again, this is open source, and people are free to develop the software they want the way they want.
It is truly not clear that what OP is saying is the explanation you gave, so it was valid to question it.
In any case, “the situation is complex!” is not argument. You have to explain why the person’s view is an over simplification. Declaring that an issue is complex is not enough. There are many complex issues where “X is evil” is still a valid view. Example: WW2 and Nazi Germany.
I doubt there’s any. There’s not a good definition of a “political meme” that wouldn’t have many people disagreeing whether certain memes are political or not, hence breeding power trip mods and bias. Most likely, it’ll just be allowing the political memes that agree with mods opinions, or are status quo to the mods, and hence not seemingly “political” even if it is.
But if you find one, please comment it here. I’d love to see it.