Ok, all cleared, just a vocabulary issue I think. I was quite confused I have to admit.
So first, about genre, I understand. I actually have the same problem, especially for a side comic I'm planning. Fantasy is there but not super apparent, so it will go in the romance category but... I know I would get more readers if I put it in the BL category. I won't, but it's my choice. It could go there to. I do understand you choosing the genre that will bring the most readers.
Then, for the tropes.. well, the ones you describe are not what I think when I think BL tropes. Yours are more legitimate problems and issues arising for LGBT people, also in real life. And I would say even more generally, in the case of any relationship that is not socially easy to accept or make people accept (all what you described could in a way apply to any frowned upon relationship, not just LGBT ones).
So finally, I have nothing to worry about!
(About the alcoholism topic, I don't remember reading anything that I felt was problematic, but if you feel it may be an issue, I'll be extra-careful when I read about that, and tell you if anything feel wrong to me).