You don't seem to understand the difference between sexual orientation, sexual reproduction, and biological sex.
Heterosexual orientation is the undisputable cause of human babies
Incorrect. Heterosexual
sex is the major cause of human babies, not orientation. Certainly the prevalence of heterosexual orientation leads to a whole lot of heterosexual sex, but it isn't a prerequisite.
Heterosexual orientation is a genetic condition that is accountable in humans by the genes on their X and Y chromosomes.
If this were true surely homosexual orientation would simply be a variant form of genetic condition? Or do you mean that sex is determined by genetics, because once again that is quite distinct from sexual orientation.
Heterosexual orientation evolved as the key mechanism for facilitating a populations’ dynamic equilibrium and its resistence to Darwinian natural selection.
I'm not sure there is anything to support this characterisation. I certainly don't see where
resistance to natural selection comes into it.
nor is the cause of homosexual orientation known to science.
Then surely neither is the basis of heterosexual orientation. I can't see what the genetic basis has to do with anything unless you want to argue that homosexuality is entirely a 'nurture' phenomenon, a position which there is substantial evidence to call in to doubt.
in fact, it may be a mechanism that suppresses a population’s ability to resist NS.
A completely bald assertion, do you have anything at all to back this up? There is evidence that in some cases homosexuality in men is linked to above average fertility in their female relatives.
Does science know enough about homosexual orientation to refute any of the WHEREAS statements and alter the THEREFORE statement?
Yes. Your THEREFORE statement is based on completely made up principles supported by nothing but bald assertion.
TTFN,
WK