chapotraphouse

There is though. They wanna plunder other countries and shut out their refugees to keep more for themselves. I go over to your house, trash the place and take all your valuables, go back to my house and lock it tightly so you can't get anything back. I have no interest in improving your situation, my goal is not the cruelty itself but my material benefit at the expense of whoever is a viable victim.

It's all about redistributing resources from the many to the few, to the in-group. Both materially supporting the out-group or letting members of the out-group into the in-group would completely defeat the purpose.