No, "live and let live," would be applied ethics. Meta-ethics asks what the source of meaning in an ethical claim is. It is easier to adopt meta-ethical relativ

No, "live and let live," would be applied ethics. Meta-ethics asks what the source of meaning in an ethical claim is. It is easier to adopt meta-ethical relativism if you know about meta-ethics, but I don't have a persuasive goal in presenting it; I don't think people "should live and let live." I just think it's clear progress in ethics will come best from people being able to assess their own and others sources of meaning in their ethical claims. I think we'd get more effective activism, relationships, etc. than without it.