There are too many liberal CINOs who use the Church only when it furthers their agenda.
If Pope Benedict XVI is serious, he'll start excommunicating those politicians who refuse to publically recant their liberal-sins.
See above... Also, the official pronouncement of excommunication on these people would have little to no effect, and they would immediately test it by taking a place in the Communion line. There is ALWAYS some darned leftist "priest" who is willing to give them Communion at his Clown Mass, despite their open and blatant disregard for the Church's teachings on ANY aspect of Catholic life, not just those on "Life." Teachings on contraception and marital fidelity, annullments, confession...these are all part of the life of the Church that "Cafeteria 'catholics'" choose to disregard. Excommunicating them formally is not going to do anything to their state. They will continue to flaunt the Church's care and teachings as long as they can, just to "prove" they are right. ("A bolt of lightning didn't strike me dead. That must mean God blesses/doesn't care what I do...")