What are you smoking again?

犹太人里有白也有黑?

Do I need to read more? There is Google, it isn't too difficult to get yourself educated. Jewish is a combination of culture, religion, and race. There is nothing racial about it, that's just the way it is. Your statement is as rediculous as to claim there are white and black in Han Chinese. No, there are not. There might be white and black in Chinese nationality, but not in Han Chinese.

BTW, people can tell Jewish from other Caucasians. In Nazi Germany, there were public lectures about that.