> Some population groups are surviving hybrids but the percentage is very small

The pure genotypes were obviously out-competed, surviving Europeans and (East?) Asians are descendants of hybrids.

Aside 1:

> Asian is much less AFAIK, it's mostly a European thing)

Latest I heard is that it's actually the other way around, East Asians are more N. than Europeans.

Aside 2:

> my own Neanderthal percentage is just 2.4%, so I'm actually almost more Jewish than Neanderthal

So you've been told that you're mumble percent Jewish? Have you verified that you don't just happen to have a bunch of perfectly European genes that—even though characteristic for Ashkenazic Jews—are not at all unique to them because of their >60% European admixture?