I know what you’re saying, but sometimes it is just the vocabulary.
I remember a conversation with an older woman remembering fondly going dancing with her gay friends.
The words she were using would be considered slurs today (even if a bit dated) but they were not meant maliciously.
It’s easy to assume bad intentions, but it does happen that it’s just someone that’s not informed of the current “correct” vocabulary, and that’s okay as long as it’s addressed.
I think you are right about the lack of diversity.
My own take on it is that lemmy is currently populated by early adopters. There might be a relation between beign open to try new things and being left-leaning, I don’t know.
But I do think that over time, if Lemmy survives it’s early day phase, more people joining should bring more doverse point of views.