It is not possible for the Vatican of the bishops to publicly excomminicate all the silly apostate Catholics who endorse anti-life policies that are completely contrary to the Catholic doctrines and indeed, biblical thruths since the time of the New Testament.
However, it would be possible for the entire Bishops conferance to anounce that any such dissenting Catholics should not approach the altar to receive holy Communion.
It is the belief of the RC church that to receive the Holy Eucharist knowingly with a sinful heart [i.e. with grave sinupon your sould] is to call down upon your soul the risk of eternal damnation. A publication of the sins involved which are pro-abortion, adultery, pro-euthanasia, acceptance of homosexual behavior or Gay marraige, etc. needs to be done often and repeatedly until all Catholics understand the gravity of their actions upon the destiny of their immortal souls. Such persons excommunicate themselves and it behooves the leaders, the bishops, to proclaim it publicly.
It mighr be a good idea as well to give examples of some famous folks like Nancy Pelosi, Joe Biden, Andrew Cuomo, as examples of persons whose actions have excommunicated themselves.
God and his Son, Jesus Christ will not be mocked!
“It is not possible for the Vatican or the bishops to publicly excomminicate all the silly apostate Catholics who endorse anti-life policies that are completely contrary to the Catholic doctrines....”
Because that would include all Catholics who voted for Obama and those, recently surveyed, who do not oppose same-sex “marriage”.
In the latter category, 54% did not oppose SSM.