“Is it not cruel to condemn an individual from doing that which his biological and genetic makeup demand that he do?”
A murderer might argue the same thing. The Torah is an instruction manual, e.g., Ten Commandments, not Ten Suggestions. I would expect that any exceptions to something so emphatically and repeatedly forbidden would have been made clear in the text, not suddenly discovered some 4000 years later.
When I read that I thought Jeff Dahmer. Yes, that argument for homosexuality as an inate human impulse would apply to a number of impulses. Including murder.