I have managed to actively avoid politics during my time here, although on most servers it does require ignoring Local and always ignoring All—far too many communities to block. ani.social has a very safe Local to check for avoiding politics, it's just anime and manga.

Because it's not just explicitly political communities that are chock-full of politics, they are also in meme communities. Someone posts some depressing "relatable" meme and the comments will have people saying "yeah I hate [politician they believe caused the depressing thing in the meme]" or something like that. Whether they have a point or not, and even when I outright agree wholeheartedly it is exhausting. Certain communities post news about their specific topic which sometimes intersects with politics and so that attracts political comments too.

But I can say with the active political avoidance tactic I do pretty good. I will check out new communities via !newcommunities@lemmy.world and sometimes check an instance's community list and browse random posts on a community that mildly interested me, that is how I still get content discovery.

Also, the problem is the number of users. Neurodivergence is, as far as I know, not the statistical majority. Finding 1 neurodivergent in 100 people is a lot easier than 1 neurodivergent people in 3. I'm neurodivergent, I also stick to the things I'm interested in here. So I am probably a lot harder to find unless you share my interests.