jews are a rootless people, so historically they migrated a lot and because of that they couldn't carry a lot of stuff with them, so when they turned up in a new country they took up roles like banking, theatre and newspapers which are portable skills. Because these niches allowed them undue influence over the host country they were inevitably hated and frequently expelled. Look at the tech, movie and media companies now - all jews. You can only fully trust people of your own cultural and geographical heritage, but the jew is an eternal subversive and only acts to perpetuate the security of other jews. It's much the same for muslims, they will always infiltrate another culture with the aim of turning everyone towards islam (Christians are technically the same, but are too weak and naive to stand against islam)