If homosexuality was narrowed down to a gene or gene sequence that science developed a way to ”switch off”, if a parent chose that option, would you believe it was a parent’s right if they knew their child had it?

This has actually and A & B part.

A: Science has located the gene or gene sequence that causes homosexuality, is it a parent’s right as to whether they deactivate it and the child would grow up an average heterosexual?

B: If they deactivated the ”gay gene” it would leave their child asexual having no sexual desire in their life or they would be heterosexual but with around 8–15% libido as the average heterosexual, would it still be the right of the parent or would you (by your morality) see it as immoral? Would option A be more moral than option B?