I think it's naive to ignore the social pressure of this choice when weighing the costs and benefits. You need to consider how much the scorn of society will burden you personally, because some people can handle it and others simply can't. If you seek maximum approval of your peers, then this may not be a wise decision.

The logic of "you're already gay, you might as well be interracially gay" is so flawed it's not even funny. First of all, I think it's safe to say everyone of that ilk will agree that homosexuality is not a choice. Given that assumption, he has no recourse, so he is forced to deal with the burdens society places on gays. He has absolute choice in whether or not to pursue a relationship. Just because they face similar disdain from society at large doesn't mean they are equivalent acts.