I'm not sure how much further I want to go with this or how much time I'm going to want to waste on it, but for the sake of argument:
Where has anyone, gay or straight, ever been guaranteed any "basic human right"? The only rights we're guaranteed (here in America) are life, liberty and the pursuit of happiness. Nowhere are we guaranteed anything else. Being able to marry isn't a basic human right. Being able to adopt children isn't a basic human right. Being able to be included on your partner's health insurance isn't a basic human right.
Will Gay people face prejudice? Of course. So will Black people. So will women. I'm over 40, overweight, and female: a classic demographic that gets passed over for jobs all the time because of my age and weight. Unfair? You betcha. Anything I can do about it? Nope. Except to keep looking to until I found a place where they weren't prejudiced against me based on those physical attributes. I found it and am probably happier at my current place of work than I ever would have been at those other places who found me lacking because of what was on the outside.