There’s been lots of recent stories of teachers refusing the call kids by their preferred pronouns, for one. But also, I think you’re trying to be more rational than these conservatives are. They don’t need there to be a difference in how they work with someone to refuse to do it. Some will literally claim it’s against their religion to be involved with an LGBT person at all.

Stuff like education is an obvious basic right, yeah, but there’s so much fuzziness. Should the only store in walking distance be able to refuse to serve you? Especially in small towns where there might only be a single business providing a service, they can easily make the area effectively an unlivable area for whichever group is the current focus of conservatives.

Plus there’s the good ol’ paradox of intolerance. By just allowing people to discriminate, it spreads. When it’s acceptable for one business to discriminate, it’s more likely others are going to adopt the same stance. More people will be taught their intolerance. It’s basically a social illness. Much like a real illness, that needs to be isolated and prevented from spreading.