So all the hate mongering and gay bashing is religious!??
Yes all hate mongering and gay bashing is religious. Go ahead and point out one gay hate crime committed in the name of science. Point out one anti gay advocacy group that is not religious in nature.
and want secular scientific argument is there for the objection to homosexuality?
Science has established that homosexuality exist in over a 1,000 species all of which still exist in their natural habitats undisturbed by the presence of homosexuality in their species.
Homosexual behavior in animals - Wikipedia, the free encyclopedia
As of 1999, nearly 1,500 species, ranging from primates to gut worms, have been observed engaging in same-sex behaviors; this is well documented in about 500 species.
Including exclusive homosexual paring.
In most instances, it is presumed that the homosexual behavior is but part of the animal's overall sexual behavioral repertoire, making the animal "bisexual" rather than "homosexual" as the terms are commonly understood in humans,[18] but cases of homosexual preference and exclusive homosexual pairs are known
List of birds displaying homosexual behavior - Wikipedia, the free encyclopedia
Chilean flamingoes eating, drinking, and preening in St. Petersburg, Florida; flamingos (as well as penguins and other species) sometimes form committed same-sex relationships that can involve sex, traveling and living together, and raising young together.
Male Guianan ****-of-the-rock, distributed in the mountainous regions of Guyana, eastern Colombia, southern Venezuela, Suriname, French Guiana and northern Amazonian Brazil, "delight in homosexuality" with almost 40 percent engaging in a form of homosexual activity and a small percentage never copulating with females.
Male penguin couples have been documented to mate for life, build nests together, and to use a stone as a surrogate egg in nesting and brooding. In 2004, the Central Park Zoo in the United States replaced one male couple's stone with a fertilized egg, which the couple then raised as their own offspring.[63] German and Japanese zoos have also reported homosexual behaviour among their penguins. This phenomenon has also been reported at Kelly Tarlton's Aquarium in Auckland, New Zealand. "Humans have created the myth that sexuality can be justified only by reproduction, which by definition limits it to hetero sex," says Michael Bronski, author of The Pleasure Principle: Culture, Backlash, and the Struggle for Gay Freedom. "But here is an animal society that uses homosexuality to improve its social life."
Natural selection has not weeded Homosexuality out in all the 1,000s of years we have existed. So either it was a beneficial characteristic or it is so harmless that there are never any pressures against it.
Homosexuality has no baring on population, other than the possible theory that it exist to prevent overpopulation, though that seems unlikely since humans continue to breed at dangerously high rates. This imperative is compounded by the fact that homosexuality in all species occurs in a small minority of the population and has never impeded the growth of any species. There has never been a case in which a species was endangering it's self by being to widely gay.
There are in fact a few scientific theory for the evolutionary purpose of Homosexuality. Which would further establish it as not only a natural phenomenon but also a necessary one.
Male Homosexuality Can Be Explained Through A Specific Model Of Darwinian Evolution, Study Shows -- ScienceDaily
Potential evolutionary role for same-sex attraction -- ScienceDaily
The last refuge is the notion that homosexuality prevents procreation, which is a false claim. Homosexuals, men or women, are completely capable of producing offspring naturally. Both gay men and women have fully functioning reproduction organs. If for whatever reason everyone in the entire world was homosexual, there would still be not a single rational reason to assume we would all die out. If it was imperative to keep the species alive we could easily still create more humans within the practice of conventional intercourse. The only reason that silly strawman is ever used is because people are not aware of the differences between sexual reproduction, sexual behavior, and sexual orientation all of which are distinguished from each other, all of which work independently of each other.
There is literally nothing. Are you suggesting that there is? Are you suggesting that you don't merely have a uneducated opinion that you will post but a substantiated sourced argument with compelling scientific evidence for why homosexuality is inherently wrong?