Some say that being gay is not natural or beneficial biologically for humankind because it doesn't produce children.
Look at all the children that are produced in this world by straight couples without any concern for contraception because of religious or cultural beliefs. Children that don't have enough to eat, fresh water to drink or access to education.
I'm not talking about just Africa or India either. On the local authority housing estate I grew up on in the UK one family had thirteen children, they were all thin and dirty. How is being able to naturally produce children by the dozen that you can't afford to feed a good thing?
People have a weird idea of what is good and natural. Disease is natural, earthquakes are natural. We have tried to made this world a decent place to live for everyone often by fighting what is so-called natural.