In fact, you are, in the US, allowed to refuse service to someone based on their tattoos or hairstyle [0]. The only prohibition in general on refusing service is to protected classes such as race or sex.

So now we can refuse service to someone with a tattoo we dislike, but not because they're unvaccinated? We don't deserve to survive as a species if we're that fucking dumb.

[0] https://webcache.googleusercontent.com/search?q=cache:AHnJsx...