So the person that says that he/she personally doesn't approve of abortion but says he wouldn't vote to stop it, has the innocent blood of that child on his/her hands. The Catholics that stay in the Democrat party that has in its planks, the women's "right to choose" is committing murder by prolonging this abomination.
Now that's my personal reading of the Scripture and I feel the Church agrees with that interpretation. Having established that, why are these high profile Dems allowed to remain in the Church? I have been scolded that it is difficult to be excommunicated, and I can appreciate that, but at some point, shouldn't the Church make a decision over the parishioners that are publicly thumbing their noses at the Church? Why was Teddy Kennedy allowed to be supported by the Church in Mass. year after year, when his life was fraught with open defiance of the Church?
I know there are many that say that it isn't up to me to decide who is worthy to be called Catholic, but at what point is the Church responsible to decide the parishioner isn't serious about their faith? IMHO, a few "trials" of high profile perps would prove the Church will not bend to Satan and means what it is saying. If there were consequences for a few of these, the low profile Catholics would have to decide it's either being Catholic, or being a Democrat, you can't be both.
Recently, we all were reminded that the charade is ongoing when Biden and others proudly wore their ashes on their foreheads on TV to show they are still "good Catholics". Maybe Biden just fell into a door and it was a bruise, That's what the "Catholic" news caster thought anyway. She didn't even know it was ash Wed. That's where we are today.
I think you, and editor-surveyor (above), may have a bit of a misunderstanding about what "excommunication" does. It doesn't remove the excommunicate from the church -- even a bishop doesn't have that power.
If you want to talk definitive removal from the Catholic Church, that has to come either from the sinner himself (by formally declaring that he is not a Catholic, or joining some other religion, etc.), or from God -- by having the sinner die and go to the bad place.
Excommunication simply says to a Catholic: "You are prohibited, formally and publicly, from receiving any of the sacraments of the church, until such time as you repent of sin X before a minister Y authorized to accept your repentance." (Exactly who Y is, depends on the situation of the case; either a priest, a bishop, or the Pope.)
Canon 915 is not excommunication. It's an instruction to the minister of communion to refuse communion to "manifest public sinners". I, like a lot of other Catholics (e.g., Abp. Raymond Burke of the Holy See), think it ought to be used a lot more often than it is.
As to why it isn't, ask the bishop of the person in question.