I never said anything about ethicsHumans have social/political/artistic purposes, but we have created those ourselves. Those purposes are subjective. When a person argues that homosexuality is "biologically wrong" they're appealing to this idea that nature/biology/evolution has such a purpose, and that it is unethical not to fulfill such a purpose. But why? In the subjective world of human experience, specifically who is being disadvantaged if a man doesn't reproduce? No one. Thats why I asked you about murder, and whether or not you think it goes against biology. We usually object to murder not because it "goes against biology" but because we have enough empathy to know that we, ourselves, wouldn't want to be killed.
I never said anything about anyone being disadvantaged
you must be talking about someone else
Every living thing on this planet is designed to reproduce. Gay people actively go against this design