I experience Lemmy as a reflection of many of the problems in the world
You've said it yourself. It's not unique to Lemmy. This is just a smaller platform with therefore more biases. You could keep trying and show new visitors with your viewpoints that they have a space here. E.g. Lemmy is slowly becoming less try-hard anarchistic. But honestly with your viewpoints, whether it's about AI or strict immigration, I consider it too difficult and unrealistic currently.
I wish progress was instead defined by people speaking up for themselves and privileged people only supporting them to raise their voice...