I’m not sure what’s the problem here - the reason for the outcry is well understood. People want them out because of their scandalous actions, which are quite recent and raw. As St. Paul said - “expel the immoral brother!” I realize there are proper steps that must be taken, but to argue that the ones calling for excommunication are flawed, isn’t just going to fly here.
Will Cuomo repent? We shall see. He’s been warned and given another chance to repent. But the outcry is just!
The "problem" is understanding the church laws applicable to excommunication. Yes, we don't just toss politicians out of the church because they have 'politically' (as a representative of all the people) disagreed with church teachings. Hence, the links posted above to explain church positions on specific issues.
To put this into perspective, imagine you are a muslim and the governor of Michigan. The muslim community demands that you, as a follower of Islam, impose Sharia Law on all residents of Michigan. You disagree since you represent ALL constituents, including christians and jews. Should the muslims excommunicate you?