A homosexual worked in a store that helped my wife test and purchase some products. The honest truth, he was one of the nicest people I met. We talked and I was fine with that. Again, treating him well, does not endorse the behavior. I don't have to make it my focus. It is not my concern.
The idea that what others do in private requires or is any way interested in your "endorsement" is not only bizarre. It's actually what I would call perverted or abhorrent.