I'm a big fan of Dieselpunk and WW2 stuff, but games set in it always have you play as Americans or sometimes the Soviets.
I couldn't name a single one where you play as the Germans so I thought it would be a fun way to make my game unique.
There are plenty of videogames where you play as a villain but few tabletop RPGs where you do the same so I find it fun to expand what a ttrpg can be.
I'm unfamiliar with the term "how do you square" so I don't quite understand. If you're asking how I translate it, my game has a Social Credit Score system to show if the government likes you or not. If it gets too low, your character is killed.
Poland doesn't really exist in my setting because the lore begins with the surrender of France. So I didn't associate any species specifically with them.
Animals with social penalties mostly are from nations they were/are currently at war with, so Bears from Russia, Badgers from the UK and Possums from America.