Correct. A tayva is not a choice; otherwise everyone would “choose” to get rid of all their tayvas! The choice is whether or not you act on your tayvas.
Google “Evidence for a Biological Influence in Male Homosexuality” for an article written by scientific researchers Simon LeVay and Dean H. Hamer.
Incidentally, the difference between bestiality and homosexuality is that one is a “fetish”, while the other is an overall orientation.