There is nothing about the core ideology of Marxism Leninism that is opposed to queer rights. Actually there are a lot of queer people in the community at large who are communist and findable on YouTube or Lemmy. I'm one of them.

I'm not here to teach everything and I trust you know enough to be able to look up more as you wish. If you want an example of an ML nation that is pro queer look up the Cuba Family Code changes made recently. They're among the most progressive in the world and help to guarente rights for trans people, lgbt, and more. Additionally China has a large trans healthcare clinic first of its kind recently opened in Beijing and a well known trans TV host. Vietnam also has a vibrant lgbt community and even in North Korea homosexuality and cross dressing to my research are not criminalized despite lacking public interest/support.

The days of old are over and new communist nations can and are doing better to ditch reactionary tendencies especially around queer rights.