The Church is a powerful political force that has as its objective exclusion (if you differ). Christ's message is one of love over law and is inclusive. If Mass is the celebration of Agape, it is not the place for for political displays at all, either for or AGAINST a position. Where is the example of Christ's love in Pence's action and in the posted reactions? This is not a political matter, it is a question of how we emulate Christ when faced with difficult circumstances.
Distracting activities do not belong at Mass. I don't favor "protests" at Mass or displaying symbols which express ideologies or practices contrary to the Catholic faith. Not sure it is the laity's job to police Holy Communion. If the sash events are upsetting people, they should find somewhere orthodox to attend Mass. That said, I suspect there will be more unfortunate incidents at Mass. But Mass is not a "Sympathy for Sodomy" event. People who have special needs or problems in this area should be able to find the Confessionals without disturbing their fellow Catholics at Mass.
Christ fashioned a whip and drove people out of a Church. He called people vipers. Righteous anger is just. I am not saying that Pence was within his rights, but I am not saying he was wrong either. He seemed to be acting out of a conviction to stand with Christ. I will accept what the proper authorities say.
Too often today, Christ is manipulated into being a ultra soft wimp. He is not. He is mercy and justice.