Then there’s the Vichy French. Don’t forget the Jews who co-operated with the nazis hoping they’d be spared.
In the end it only gets worse.
When you live under a metaphorical rock, you can’t see there is a world beyond the perimeter. The neo Isolationists have such a narrow and limited view they can’t comprehend the real world beyond their limited vision
The problems they can deal with are restricted to those apparent under their rock