How should I approach having relatively obscure points of lack of privilege?
I'm a 2 on the kinsey scale; people seem to think there is just gay, straight, and bi and are less exposed to the idea of a spectrum.
I'm passing white; part mesoamerican, always grew up knowing I was part native american then took two DNA tests and it was confirmed at least that I was part native mesoamerican.
I have always struggled with getting a handle on my gender and biological sex whether it was my year of identifying as nonbinary or people mistaking me for a female throughout my life or my body issues around whether I am feminine or masculine in one way or another; as I cover in another post I am currently trying to wrestle mentally and emotionally with my seemingly feminine pelvic bone despite being male assigned at birth.
These issues are obscure enough to be ignored by basically everyone, so with more conservative types I have to suffer gaslighting, covert and overt abuse, and interpersonal neglect, and with more 'liberal' types I have to suffer a different kind of rejection wherein it is denied that my issues qualify as oppression because there are simply limits to what any one liberal is educated on.
What are some good tips for dealing with this kind of life situation?
Not really but no offense, you seem to be a bit lost in the sauce. If you are this caught up in these kinds of thought patterns you probably radiate some very strange energy to the people around you. I may or may not read too much into that but you seem like the kind of person who would trauma dump a decade of issues onto someone who's showing even the slightest bit of interest in you. It's exhausting for people to perform this kind of emotional labor which is why the "liberal" types as you put it may avoid you.
If you can afford it, get professional help if you don't do therapy yet. But don't mistake your friends or your date for a therapist.