A good way to judge if something is moral/good (and thus should be done), or not, is using Kant's categorical imperative, which states: act only in the way you wish that action becomes universal law, meaning everyone acts that way. This often illuminates deviant, degenerate, immoral, stupid, and hypocritical actions quite quickly, when analyzing what would happen to society if everyone acted that way. If everyone was gay, the species would die out within one generation.

Even on the individual level, gay people are genetic dead ends. If an action or lifestyle is so abhorrent to nature that it kills off the organism taking part in it, or prevents it from procreating, it's usually a good indication that it's wrong. Being gay is analogous to cutting your dick and balls off to nature. It's just as stupid.

At most, the gay community could claim this is some kind of environmental factor affecting the mental affinities, or gene expressions which in turn affect the mental affinities for certain people, making them gay (or more likely to be gay), to bleed off excess population. This, however, doesn't make sense with regards to how gay people "procreate". Most people who become gay later in life were molested and groomed as children by other gay people, which means this isn't a natural phenomenon. Furthermore, with the push in mainstream culture for pro LGBTQ+ in everything, it's a force vector on human behavior (brainwashing), which results in more gay people than there would be without this brainwashing.

Lastly, all of the degenerate/destructive filth the left/mainstream is pushing, including being gay, is based on the principle: do what feels right, not what IS right. Gay people aren't gay because they know it's right, they're doing it because they "feel" that way. It's hedonism, pure and simple, with all its failings.