Food service people are not MAGA for the most part. The owner of the restaurant is probably MAGA and all the servers probably hate him.

Also, American culture, especially in the South is to be kind to people at face value

I went there a few years ago and I highly recommend it. Beautiful castle and views. Just a heads up but that road starts at the bottom of the mountain and it’s a long hike up. So they have a bus if you need to take it