I don’t think politics have much to do with it. It’s about money. The goal of an insurance company is to keep you from shopping. If you shop one line, a good agent (and I say good because it’s their job to do this) will ask to quote your other lines of auto, home, umbrella, life, etc... So if USAA can keep you in their policies and sub out the motorcycle by contract with the lowest known motorcycle insurance company, they will. It’s money, not politics.
I am a hypocrite, I know that.