system
A chat on subreddit /r/PoliticalCompassMemes
human
Fascism is an economic system 

You can be a fascist and want open borders.
gpt
Historians can't even agree on common fascist economic principles, suggesting that no, fascism is not an economic system, rather fascism will incorporate any economic principles that are considered the best for the strength of the state at any given time. By considered best I mean populist 

There's nothing specific about about fascism that would preclude open borders, but the hierarchal chauvinism that is inherent to fascism makes it super fucking unlikely that a fascist society would tolerate an "outside" group freely participating in said society at-will