Lemmy isn't just full of political content, but it's also full of assholes too that take advantage of the small sized community of Lemmy and other instances. So this gives the impression that it's simply a clique that runs around 'running things' and by that, just kissing ass to mods and making you out to be the problem when it was started by them.
With politically charged content and just random pricks mixed in, it's going to be a hard sell for anybody to stick around here on Lemmy. Moreso, the lack of niche communities, will not give anyone a sense of belonging.
That's what Reddit will always have in spades against Lemmy. Lemmy just seems to be populated with political people, nerds into programming, jackasses and aimless wanderers.