It’s a tough one to actually articulate properly. I am strongly against most discrimination. E.g. not serving blacks, or women.

At the same time there are situations where it’s justifiable. E.g. a bar not being willing to serve someone they think might cause trouble.

There are also grey areas. Selling a cake, Vs decorating a cake falls into that one. Selling a cake should not be used to discriminate. At the same time, I fully support a decorator’s right not to make a particular cake. E.g. a neo nazi group wanting a cake praising Hitler with extremely crude language. However, that same line would also allow a baker to refuse to sell a custom calendar to a gay couple.

Even limiting to goods could be grey. Selling eggs should be uncontroversial. But how about selling eggs and spray paint to a gaggle of giggling teens on Halloween?

In short, there are times it is completely acceptable to discriminate. Unfortunately, I am completely unable to actually articulate a good line, that doesn’t also protect bigoted arseholes.