You're right, of course. Most countries require voting, by law, whereas it is a right in the United States and we don't horse-whip citizens into polling places. But, threatening with eternal damnation those dummies who don't care about voting is odd.
I don't understand people who don't vote. My dad never voted after voting for JFK in 1960, and my wife is the only person in her family who votes. I'm glad; they'd vote Democrat if they did.
There is nothing odd about it. It is the duty of the Church to prepare its members for the day they will stand and be judged before God. I would not want to be the person who lived in America post-Roe v. Wade and has to explain why getting a haircut on the first Tuesday in November was so important in light of the 40+ million human beings who were being killed with the full approval of my democratically-elected government.
I've always found the conversations between Christ and Pontius Pilate to be the most fascinating parts of the New Testament. Christ often shows open anger toward the Pharisees, but his attitude when dealing with Pilate is almost nonchalant. As if to make everyone understand that Pilate has a legitimate role in the eyes of God.