There’s a lot going for your idea.
The whole matter is still a mystery to me.
Unless you have been in that boat, it is difficult to comprehend for others.
Nothing bothers Jews and immigrants more than thrown into the exclusion class. All it takes is 1 or 2 incidents of told “you don’t belong here” and a lifelong democrat gets created, who will vote against their own prosperity interests, even though they came here looking for prosperity.
Same reason some Americans join Islamic extremist groups. It gives them a sense of belonging and acceptance.