Intolerance would've been hanging up or throwing them out the door for them being gay. That is not what happened here. Labeling him a bigot is overkill given the totality of his actions.
Based on what? Your personal interpretation of intolerance? What would you call them? Very nice people but don't like you for trying to get married? What word would you use? I think backwards ignorant bigots fits the cake, pun intended.