Our current pagan government is (so far as we know) the lawfully elected authority according to the laws of the land (with exceptions), therefore we are required to respect that authority in so far as it doesn't cause us to sin. If the government were to require it's subjects to do something sinful, or persecuted the Church, then our obligation is dissolved. Right now it seems that that obligation is beginning to dissolve, considering we're presently worse than the Aztecs.
Some may not want to admit it, but the US. Constitution makes provision for secession from the Union.
And as is the saying of the Spanish: Dios, Patria, y Rey
*Take note of the order.