We already force companies and people to take actions that may not be compatible with their beliefs - for example here in the UK it's illegal to refuse to rent to a homosexual couple on the basis of their sexuality a room in a bed and breakfast, despite the fact that some proprietors feel this infringes on their religious beliefs.

A better example would be forcing photographers or event planners to sell to homosexual weddings since in those examples, the vendors are selling their partnership in expression.