If they were “born that way”, i.e. a way that does not permit reproduction to occur without deviating into heterosexuality, the genetic basis would be selected-out and homos would be very rare. The “born this way” argument fails under the most basic understanding of genetics.
Exactly. Even if there was only a 1% less chance of reproduction (because, for example, social mores forced them to get married), eventually this gene or combination of genes would self-select for extinction. Which begs the question of HOW do those genes arise in the first place, i.e. what genetic advantage did they offer that would offset a lack of reproduction? None come to my mind, and I've thought about it for a while.
The "born that way" thesis is factually false based on the simplest of genetics principles. Therefore, it MUST be behavioral, which means that the mental conditions underlying it can be treated in some fashion.
Why do heterosexuals insist on continuing to create gay offspring?