Read Shakespeare’s “The Merchant of Venice”. A muslim could openly woo a Christian woman, whereas a Jew would likely have been executed for doing the same.
As for why Jews would settle in Europe, it was largely a question of “Where else?”
Following WWII, any Jew who remained in Europe was/is crazy. But there are plenty of nutty Jews here in the US as well, who’ve sold their birthright for secularism, or at the least, are completely un-Orthodox.
As for why Jews would settle in Europe, it was largely a question of “Where else?”
North Africa, Turkish Empire and Central Asia. Areas that always had Jewish populations.