I also find it rather amusing that the social justice movement tends to be so US-centric - i.e. focusing on the issues that are specific to or manifest most strongly in US, and then projecting that focus outwards, sometimes to the point of cultural intrusiveness (like that whole "Latinx" thing which seems to be nearly universally reviled outside of US).
At the same time many people sincerely believe that US is not just a bad country - I'm fine with this as a matter of subjective judgment, and share some of it even - but that it's particularly bad in a way that no other country is. It's almost as if someone took American exceptionalism and flipped the sign. Which kinda makes me wonder if that is really what's happening here.
Actually, "pharisaical" is the dictionary definition for this kind of hypocrisy.
there seems to be a territorial overlap between the two
Surely some adherents of each use it to feel righeous/superior, but in only one case is it actually justified.