Current genetic research indicates that Europeans had Neanderthals among their ancestors. In other words, Neanderthals interbred with the out-of-Africa CroMags to produce the non-African races of Man.
Yes, there's some evidence of interbreeding but not enough to prove Homo Sapiens evolved from Neanderthals. Also, with due respect, are you suggesting that the "out-of-Africa CroMags" were black or Negroid because I don't think at that early stage there is evidence that they were. And didn't the spread of out-of-Africa hominids occur before the advent of Cro-Magnon man?