Douthat last year:
But there’s another possibility, in which the oft-invoked analogy between opposition to gay marriage and support for segregation in the 1960s South is pushed to its logical public-policy conclusion. In this scenario, the unwilling photographer or caterer would be treated like the proprietor of a segregated lunch counter, and face fines or lose his business — which is the intent of recent legal actions against a wedding photographer in New Mexico, a florist in Washington State, and a baker in Colorado.
Meanwhile, pressure would be brought to bear wherever the religious subculture brushed up against state power. Religious-affiliated adoption agencies would be closed if they declined to place children with same-sex couples. (This has happened in Massachusetts and Illinois.) Organizations and businesses that promoted the older definition of marriage would face constant procedural harassment, along the lines suggested by the mayors who battled with Chick-fil-A. And, eventually, religious schools and colleges would receive the same treatment as racist holdouts like Bob Jones University, losing access to public funds and seeing their tax-exempt status revoked.