I’ve experienced a few things in life so annoying as the naturalistic fallacy.
Human beings are part of nature. How we experience sexuality and gender is ipso facto natural.
And then there are those OTHER 1500 species, of course.
I like to use negative counter examples. When I was a boy I was bitten in the leg by a copperhead snake.
That snake was perfectly natural, behaving in a perfectly natural manner, yet if I had not taken by unnatural ambulance to the unnatural hospital to be injected with an unnatural antivenom, I would have died.
Yay for unnatural!