>>13141047They could come back and say "homosexuality is present in nature and therefore it's fine for me to do it".
But, even if you could make a good argument for why homosexuality is not beneficial to someone's well being, you still have not demonstrated that it is *morally* wrong to do it.
Take a look at the is/ought problem in philosophy and ethics. In short, we cannot move from "statements of what is" to "statements of what ought to be"
https://en.wikipedia.org/wiki/Is%E2%80%93ought_problemAlso, the study of cognativism in ethics and moral realism is a good place to start.
