What's up with the Nazi themed restaurant 'Bier Stube' in Frankfort?

I recently went to this restaurant called 'Chef Klaus' Bier Stube' in Frankfort, IL for my aunt's birthday. I was shocked to see Nazi memorabilia proudly displayed all over the restaurant. There was a swastika immediately upon entering the restaurant even, I snapped a few photos while I was eating, not wanting to cause a scene with my family. Don't be mistaken, there were little swastikas ALL OVER, on little toy trains, model cars, etc. It was like a WW2 Nazi military homage

If you notice the trains display swastikas with the eagle, there are MP-44s hanging from the ceiling and the planes all have the iron cross on them. It was kind of uncomfortable eating there. Having visited Germany and spent a good amount of time there, this was nothing like a German restaurant I've ever been to. I even showed pictures to my friends in Germany and they were even a bit weirded out by it.

I don't think this is how a proud German displays their heritage. Only a proud Nazi

https://preview.redd.it/7xvouli68oae1.jpg?width=1478&format=pjpg&auto=webp&s=ec80b99772da825fafd9e2f369f93370f9fa391b

https://preview.redd.it/jpzm7qt68oae1.jpg?width=1478&format=pjpg&auto=webp&s=f65dc650dfa32c76599a40deca958e23e5309c52

https://preview.redd.it/umt4woqq8oae1.jpg?width=1478&format=pjpg&auto=webp&s=82cf83e85eb8daa5968d20c1eae19914fea4b0bc