If every member of a species were "straight" and all of them continuously reproduced, that would not be evolutionary productive. They would reproduce themselves into extinction.
So if some of the straight members of a species don't reproduce, what difference would it make then if they were gay instead? Same results as far as I can see.
So if some of the straight members of a species don't reproduce, what difference would it make then if they were gay instead? Same results as far as I can see.