Reddit was always more toxic than not. Lemmy is still toxic in places, but the worst of it is contained in its own echo chambers. Lemmy has cross-instance drama more than cross-community drama.

It's just easier for like minded people to congregate around the instance of their choosing rather than just a single subreddit or specific Lemmy community. That does cause community fragmentation, but personally, I would much rather it be that way.

My point is that people are still just people and that toxicity is still around. We are able to self-segregate, so that helps a ton.