I'm a US citizen myself. I don't begrudge people the right to talk about things affecting their lives in an appropriate space (maybe don't post US politics in "non-political memes" lol). However, I also thought I'd empathize with the person I replied to and provide my method of keeping US politics out of my feed, seeing as they don't want to see it. Wanting to avoid certain material yourself ≠ calling out others for making it or wanting to consume it themselves, although I can definitely see how the person I replied to might be more on the "calling out" side than just on the "avoidance" side (not 100% sure of their intent!).

I can tell you that for me, it's because a lot of online discussion of politics tends to encourage me to doomscroll and makes me feel bad in a way news articles don't, so I try to keep my Fediverse feeds politics-free. I stay informed elsewhere. I understand the need to vent out frustration! Things suck sometimes! But I also understand wanting to avoid seeing that kind of stuff, whether your reason is like mine or more akin to "I'm not interested in this and my feed is full of it."