And how do you know that LGBT have no interest in others?  You must have proof, of course.  Because I've known gays, lesbians, bis, and transgenders during my LONG life, and I haven't met one who didn't care about others -- regardless of their sexual orientation.  I know gays and lesbians who have adopted children with severe handicaps and haven't cared about their sexual orientation.  I've known gays and lesbians who have adopted children and who have been very happy to raise straight human beings.