Homosexuality and Sexual orientation

No.13548664 ViewReplyOriginalReport
Ok, What actually causes homosexuality? I get tired of seeing them everywhere and wanted to find out what actually causes it. After reading a lot of materials I found out something
>homosexuality is not 100% genetic. Twin studies, recent genetic study says that there are no gay gene, well there are sort of, but their combination cause like 1-20% of it
>there is a radical statement that 80% of population are somewhat bisexual (personally don’t think it is true) and bisexuality and not heterosexuality is default, then why all societies in history even Japan and China that were tolerant to them were heteronormative is the question
>some scientists claim that male bisexuality doesn’t exist
>full lesbians are also questionable due to the female sexual fluidity (all of females are ready to have sex with other females) and the fact that even most lesbians are ready to have relationships with male
>there are like 500 species of animals that have somewhat similar to homosexual behavior (but not constant homosexuality even among penguins)
>there is a try of explanation of homosexuality by kin selection that siblings of homosexuals are more fertile and gays transfer their genes through them (though that doesn’t explain the mechanism how it works)
So, what do you guys think about it? Will we understand it? How will it be treated in the future?