We no longer live in a nation in which we can mind our own business. My business is your business, and vice versa -- unless, that is, we are engaged in activity that tears down family, church and community. If I'm a business owner rejecting service to a same-sex wedding, I have no right to invoke "mind your own business." Conversely, if I'm a member of a same-sex couple, I can invoke "mind your own business" all day long -- even if I'm making my business your business by engaging your services.
The obliteration of the distinction between the personal and the collective marks the end of American rights. But if you're worried about it, you should probably mind your own business.