Not if a comet, or not enough energy left, kills us first. Time is of the essence. We might not have enough time to re-evolve after racemixing before the end -- nor is such re-evolution upward guaranteed.
nostr:npub1cd27rxtr945m0x0k6t70vuk29hj48wgj7m46z9gnjpawztfh9mzshka8vl race mixing isn't as bad as you say. Selective breeding can pull out the whites again. No it will be whites versus blacks forever until we kill them but they will never kill us
Discussion
nostr:npub1cd27rxtr945m0x0k6t70vuk29hj48wgj7m46z9gnjpawztfh9mzshka8vl it would in that case be selection not evolution and its already happened many times in history. By all accounts given how many times we have mixed we should be dead and yet we are not.