As part of the Second Vatican council, the members of the 'RCC' are called to be open to other Christian Churches (Ecumenical). Also to people of other faiths. I consider myself to be open to other people, my own opinion, not someone else.
My own concern regarding the excamunication. How can the Church expect the members to be open and welcoming to others, when it is closing doors on those within the Church. When constructing a building, you start with the foundations and move outward. Perhaps the church could use that thought, before any knee jerk reaction.