I'd come to the same conclusion if I saw a dog humping the leg of a chair. The dog and the chair can not have sex, even if the dog gets some pleasure from humping the leg of the chair. The dog and the chair can not have children but I am sure some activist will come along and say that there is nothing wrong with a dog and chair wanting to raise puppies.
A homosexual or lesbian who thinks that they are going to get what their humanity needs, body and soul, from sex with someone of the same sex is fooling themselves. They can no more get what they need from a homosexual relationship than they could get nourishment by shoving beans in their ear.
Whoa there! If you keep suggesting things like that, there won't be a bean left in san francisco.