Now if this don’t beat all.....
In biology, this is technically known as a “lethal allele”.
That is, a trait that will result in the extinction of the organism. The very idea that a sexually reproducing organism, like humans, can arbitrarily do away with one sex, is harebrained at best.
I think these people actually have a death wish. Not only for themselves, but for the rest of us, too.
BUT-—WHO is going to kill all the spiders???