Those who choose homosexual relationships are too afraid or too selfish to truly give themselves to another with all the potential consequences of natural love.
More criminally, when sex is legitimate only in the institution of marriage, what is being done for the other victims in society, nation, family, and marriages which God had prepared in eternity past?
My experience has been that male homosexuals are that way for any kind of sex, and that female homosexuals are that way because they fear and/or hate men.
It's sad because the former never have enough "partners" (sex without love being very empty), and the latter never get beyond their fear and/or hatred of men. On the latter, why else do they try to be macho men ? Or only respond to "macho" women ?
In either case, their proclivities do not deserve to be societally honored as "marriage". I'm sorry, but they're warped personalities, and fortunately a small minority. It ain't the same, and doesn't deserve recognition as such.