Any prenatal test for a tendency to go homosexual will be deemed a hate crime. Anybody doing research on such a test will be denied any government funding forever. Any doctor performing such a test will have a lawsuit brought against him. Any lab processing such a test will be burned to the ground.
Think I'm exaggerating? Look up the treatment given those who dared to go on record opposing gay marriage, and tell me what gay activists will do if such a test becomes feasible.
Homosexuality is not genetic. It is borne of being molested as a kid.
“When does the one that detects homosexuality become available?”
Your question is asked in semi-jest, but someday, this may indeed become “ascertainable” through testing at some point during fetal development.
Hypothetical question (not directed at you personally):
Suppose you are a “conservative couple”, STAUNCHLY opposed to both the concepts of homosexuality and abortion.
And, suppose, during the course of [what will someday become] routine testing, your doctor informs you that your developing in utero male child will in certainty be a “born homosexual”?
What do you do?