Thing about Jews is they're not really THE problem. They're a insular ethnic group, but they're not the only one. It's kind of the same issue with Indians, Blacks, Mexicans, Italians and Irish - to a greater or lesser extent.

Now some of these people are "integrated" in the sense that they no longer identify with their ethnic group - and that goes for Jews as well - but then a lot of them are """""integrated""""" in the sense that they'll Tell You they don't identify with their ethnic group, but in secret, they 100% do...

Democracy, welfare state, etc all fall down when you have a multi-ethnic state. You can't deport your way to a mono-ethnic society because even under the "White" banner, there's a half dozen ethnic groups that will still absolutely behave like ethnic groups the second they're the only ones left in the country.

Best you can attempt to do is formalize the ethnic groups like states and have representation in government flow through them.