And it is a fact that humans have zero, one, two, or more legs. But you would never argue with the scientific claim that humans are a bipedal mammal. The exceptions do not invalidate the norm.

> This runs contrary to your claim.

It does not run contrary to my claim. My claim is that humans are either male or female. And this is wildly, overwhelmingly true.

I don't feel any need to qualify the statement that humans are two-legged creatures either.

There are exceptions in both cases, but they're not the norm.

> Intersex people are more common than gold.

It was your damn analogy, not mine.