Those "Jews who came from Europe" originally came from what you call 'Palestine'. So, to answer your question: Jews. Jews never entirely left that land (Israel). They've been there, in some form or another, for the last 3,000 years. I know people like you only like to focus on the whitest-looking Jews, to try to make your piss-weak point that the Jews in Israel now are just a bunch of white people who 'stole' the land from 'brown people', but the reality is very different. You of course totally overlook the Mizrahi & Yemeni Jews. We both know the reason for that.