I object to engaging the lobby on behalf of homoeroticism on these terms.
I think a reasonable case can be made that all of us are born with tendencies that predispose us toward certain temptations and with them certain sins.
The problem with allowing the debate to be frame in terms of “is it inborn?” is that it is debating the wrong issue. The question is whether yielding to this disposition results in good or evil behavior.
If I were born with a predisposition to anger, that fact would not make it either moral or morally neutral for me to yield to that predisposition and commit murder nor even perpetually rail against my neighbors and acquaintances.
If I were born with a predisposition to acquisitiveness, that fact would not make it moral or morally neutral for me to pilfer from my employer or turn to brigandry.
No more, were I born with a predisposition toward buggering other men would that make buggery either moral or morally neutral.
Anyone who grew up in an old-time immigrant-Irish family can relate to your comment!