It's not His teachings I'm pointing out. Did He go around forcing everyone to follow them? There were Romans in Judea in the 1st century worshipping idols, for crying' out loud. Did Jesus use force to get them to stop? Of course not. You were taught by St. Paul on what your relationship is to be with whatever government you're living under.
1 Let everyone submit himself to the governing authorities, for there is no authority except that which derives from God, and whatever authorities exist have been instituted by God. 2 Consequently, anyone who resists authority is rebelling against what God has appointed, and those who so resist will bring judgment upon themselves.
3 Rulers are a source of fear not to those who do good but rather to those who do evil. Do you wish to be free of fear from someone in authority? Then continue to do what is right and you will receive his approval. 4 For he is acting as God’s representative for your welfare. But if you do what is evil, then be afraid for he does not wear a sword for nothing. People in authority are God’s servants to mete out punishment to wrongdoers.
5 Therefore, you are obliged to submit, not only because of fear of punishment but also because of conscience. 6 That is why you also pay taxes, for the authorities are God’s servants, and they devote themselves to this service. 7 Pay to each person what is rightfully his—taxes to the one to whom taxes are due, tolls to the one to whom tolls are due, respect to the one to whom respect is due, honor to the one to whom honor is due. Romans 13:1-7
Paul wrote that in 55-60 AD. There were no Christians in the Roman government at that time.