Look at it another way. Marriage both legally and canonically required consumation to be a fact. No consumation, no marriage, annulment granted. Consumation in marriage means the performance of marriage acts. Those acts require certain complemenatary body parts which in ordinary circumstances can conceive a child. If you don’t have the right body parts ( and some men and women do not)not marriage act and no marriage. If you are homosexuals you do not have the right body parts, therefore no marriage act no marriage. In other words, the parts do not fit naturally.
You can’t flim flam God or Mother Nature or Gaia or Venus.
That is your (and my) definition of marriage. It is increasingly not accepted as valid by our fellow American citizens.
My point is simply that “truth,” as such, is simply irrelevant in this discussion.