Am I under an obligation to actively stop a person from getting drunk?
Electing pro-life legislators is an objective that all of us have. I'm not sure that goal is furthered by the rhetoric of some bishops.
Am I obligated to answer to your false analogies?
[NO]
"Am I under an obligation to actively stop a person from getting drunk?"
What a goofy analogy. A better question is do you have an obligation towards LIFE if you are a legislator? Both in Catholic belief and Natural Law, the answer is YES. As a Deacon you should be supporting the Pope in this. You have a higher obligation of OBEDIANCE.