I noticed how 3D illusions were part of these mosaics

Why were Neanderthals wiped out? My personal musings imagine that Neanderthals must have been an evolved species that were originally out of Africa but adapted to cold and 1/10th the sunlight. As unlikely as it sounds, were they wiped out by what was essentailly their ancestors?
Was (lack of) beauty an element of their extinction? Did different vocalization or language play a role? Did a form of racism shape the encounters with other humans? Perhaps some humans believed Neanderthal lives matter but maybe many didn't. Did weapon technology like the bow and arrow play a role? It seems earth changes and climate is the prevaling status quo explanation today.
jus askin, i'm not accusin.