The courts do not play that way, for unlike being born again and thus having a orientation toward Godliness, homosexuality is treated as racial or as ethnicity, and thus while they can refuse to be complicit in the creation of a work for the expressed purpose of celebrating something related to Biblical morality, Christians cannot refuse to be complicit in the creation of a work for the expressed purpose of celebrating something contrary to the law of God, even if it is illegal, as was in the Masterpiece case. For the work was related to what the customers were, and thus is treated as if it were a refusal to create a cake for an interracial marriage. That is what happens when Biblical morality is rejected.
However, if the bakery simply refused to make a cake for a heterosexual for the purpose of celebrating sodomy, then it should be treated akin to Facebook refusing to post conservative messages. To force FB to post the latter would mean FR would have to allow liberals to have their say.