Archbishop Salvatore Cordileone and others are acting for the good of souls. As a last resort, they propose denying Communion to people who persistently and publicly promote the grave evil of legal abortion.
Even in the exceedingly unlikely event that every bishop miraculously agreed on how to approach the question of Communion and abortion, it still would not resolve the political question of abortion in favor of the Catholic position.
The proposal to exclude pro-choice Catholic politicians from the Eucharist will bring tremendously destructive consequences—not because of what it says about abortion, but because of what it says about the Eucharist.