The only other option is to government-mandate that, right? Not saying there aren't other unfortunate consequences of allowing a business owner to choose who they serve, but I'd say the larger problem is just that people can be... well... humans aren't great. However, putting the power in the hands of the law probably doesn't fix that.

Ultimately, why would you want to support someone who doesn't want you to be there?

Regardless, you've given me a new thing to think about. It's a complex issue for sure.