I don't see what that has to do with basic income. I never mentioned paying people based on their sexual orientation, but upon things that we almost unanimously agree to.
My whole point is that this might as well be the empty set, for all the good it's going to do you, and if you make Basic Income contingent on this, people opposed to Basic Income for whatever reason will work hard to make it the empty set.
You could say the same thing about the "human right to live." Sure, some people might disagree that we have a right to live. But that is not really relevant to the scale of national policy.
If I said you don't have a right to a fair trial, that is not a reason to abolish fair trial laws.