It's so much easier to comment on Lemmy because it isn't a toxic cesspool waiting to tear you apart
It feels like people are a lot nicer here than on Twitter and Reddit, and even when people disagree, it's generally civil and not an all-out flame war. Also, there's no algorithm promoting outrage all the time.
For me, the anticipation of toxicity was a huge deterrent for me ever participating in real discussions, but here I feel like I can be myself.
Give it time. Should it become more popular the trolls will come. In fact I've seen a few already (some anti Ukraine posts makes me think those were professionals trying to shift opinion, but what do I know).