The word “heresy” is considered politically incorrect these days in a world in which the only “heresy” is orthodoxy. As someone in a traditional Christian church (the Anglican Catholic Church), I would hope that the church would act against the threat of heresy, including excommunicating someone who openly promulgates heresy despite warnings.
“Heresy” means “division.” It refers to doctrines, which if taught by church members, oppose the central teachings of the church. Now church members can hold heretical opinions, but they do not become heretics until they publicly espouse such opinions. So a member of the Anglican Catholic Church may not believe a central doctrine such as the bodily resurrection of Christ and happily take communion as long as he keeps his mouth shut about his position. But if he publicly proclaims his views, then he is a heretic and should be, first of all, warned to cease proclaiming heresy. If that does not work, formal church discipline, up to and including excommunication, can and should be administered.
Now what if an ACC member publicly supports the moral rightness of abortion? That person should be warned, and the rationale behind the church’s condemnation of abortion should be explained. If he still proclaims the rightness of abortion in a public setting, then the Bishop may impose other penalties, including barring the individual from taking communion. If the behavior continues, excommunication may be the only viable option.
Some bishops read the parable of the wheat and tares and figure that God will sort out the wheat from the tares at the end of time, so why discipline heretics now? The problem is that a failure to discipline a heretic becomes, in the mind of the public, evidence that the church either approves what the heretic says or at least that the church does not consider what the heretic proclaims to be that important. This sends the wrong message.
I would argue that a weak approach to dealing with heresy has harmed the Roman Catholic Church. It routinely tolerates those who openly speak of their public support of abortion. It allows heretics who deny the resurrection of Christ to openly proclaim their views while still allowing them to partake of communion. I realize that the Church may fear a societal backlash if the Bishop excommunicates heretics in his diocese, but I believe that the public would have greater respect than before for the Roman Catholic Church. A group that stands up for itself would be a group that many American people would find refreshing. I hope that the Anglican Catholic Church does not repeat Rome‘s mistake and that it will always maintain church discipline.