actually, all Whites and East Asians have significant Neanderthal admixture
but there is such a thing as too much Neanderthal admixtured DNA
just look at the basque retards
they have a lot more than average Neanderthal admixture, and they're shit flinging fuckwits, spending their time climbing up the sacred ham tree and running in front of black bulls
now, the proper amount of such crossbreeding is absolutely necessary to create actual civilizations, that which only Whites and East Asians are able of
kikes, blatantly, have far too much Neanderthal admixture, like basques, seeing as instead of creating civilization, they revert to degenerated and dimwitted savagery