This wouldn’t be “defending it” like a copyright claim. This would be suing for damages. It doesn’t matter how much they care about the brand. They’d sue to get money based on a loss of potential sales (future and present) and any other harm done.

I could see them not wanting to rock the boat, but I don’t think it’s a smart play. They’ll go down either way if the Fascists want, and they clearly don’t care about them enough to not damage them.