The sex positive agenda doesn't care in the end if it is genetic or not. They are merely using the homosexual agenda as the battering ram to society's laws and morals.
Sex Positive teaching proponents want to end all moral judgements over sexual pairings regardless of age, sex, number, relation, marital status, or species of partner(s).
They realize that they must lie to get some people onboard "well, this is something they can't help, they were born that way".
Note that this is a radical shift from what we were told in Lawrence v. Texas: "This is consenting adults in private".
Well we certainly aren't talking about adults here and we aren't talking about anything happening in private, they want to send a boy with male hormones and genitalia into the girls' room.
Communists lie. Always.
How does one square a genetic cause for homosexuality with natural selection? I thought natural selection was the sine qua non of evolution?