Nothing is perfect. Achieving communism won't end all prejudices overnight, the revolution will need to continue essentially forever. There are plenty of problems with historical examples of communism like the division between men's business and women's business, but there are also things white people call problems which are simply different, like payback. Many white people call payback barbaric, but after actually reading what indigenous people have to say about it, I like it better as a punishment for crimes than the white prison-based "justice" system. I believe the wisdom of indigenous societies can be synthesised with the wisdom of western societies to create a truly equal communist society. Some might call that historical dialectics.
If you're hesitant to comment on indigenous societies, then the best advice I can give you is to talk to indigenous people and read what they've written, so you can use your voice to amplify their comments. The indigenous people where I live have told me that they're the original socialists. Their words, not mine. Indigenous people are not a monolith and many indigenous societies were not socialists, but I speak from what I know from talking to the people on whose land I live and learn.
