I don't know. If someone is really clearly out of place, e.g. an evangelical in a progressive church, that may, in fact, be the best answer. You clearly aren't going to change your theology and practice for their benefit and they are unlikely to change their views. At least the conversation is happening instead of them just dancing out the door without a word as to why. After all, how far do you have to go to be welcoming? What if that discomfort is because of the church's lesbian or trans minister? Is the church going to choose keeping that member over keeping that minister?
It's a problem in UU'ism, probably moreso than for Bette's church. If someone who is a hard theist seeking salvation comes in the door of a humanist-leaning UU church, they aren't likely to be satisfied even if they bring a "questioning spirit" or are unitarian in their theism. All that church can say is that we welcome them and hope they find something, maybe even invite them to talk on their views in a service. But that's it. The church isn't going to bend over backwards to make them fit in if they clearly are not a fit, esp. if their views clash with those of other members.
