Gay rights is, first of all, a misnomer. Gay is a word for happy; joyful, jovial. Not perverse, wanton and fixated on vice.
Call it if you wish "personal rights." and it's more a propos of homosexual needs. Here's the problem, for you:
Homosexuals are a minority. The fact that today liberals support the absurd position of legal depravity doesn't make it a vital issue. And you'll soon find even leftists tired of wasting their energy on such dubious political causes. You are by and large an unimportant minority, and always shall be.