How a strawman, something set up to be easily knocked down?
I’ve managed to propagate a new generation of little mike-zeds. Who carry my genetic material and their mother’s, possibly mutated somewhat, but free to propagate their own offspring.
No tragic mutations killing off me, my kids, my family, or anyone I know.
Perhaps people are mutating and dropping dead in your circle at a rate which prevents their propagation. Hopefully, not.