The problems with a global secular government

There are countless possible problems with a global secular government. Firstly, the idea of a functioning global government, secular or non-secular, is a utopian idea, which presents multiple problems in and of itself. Utopia is unacheivable, because amn is innately sinful. AS selfish, immoral, greedy creatures, we cannot function in perfect harmony-our nature will not allow it. A global government would require that all humans work together in harmony, agreeing on everything and disagreements being settled through calm conversation. If anything did go haywire, there would be no checks on the governments' power-no USA to enter a tumultuous Iraq, no France to bomb a recalcitrant Libya. While war is never positive, it is necessary to maintain checks on rulers and leaders, and to keep one group (ethnic, religious, political, etcetera) from taking over entirely. Our world functions on tension, and without any political tension, there would be no politics. In fact, if we are going for utopia, we should just go completely communist and hope for a society without a government, because if we are perfect enough to live happily and peacefully and justly under one universal governmnent, why is there a need for that government in the first place? Not only is the idea of a global secular government idealistic and implausible, it presents a huge problem for us as Christians, or any religion for that matter. We would face persecution that could not be averted by the interference of another government or authority. We would face laws that legalized abortion, marijuana, incest, anything really, because there is no moral voice in the government. While it sounds dramamtic, the government would inevitably implode, destroying itself because it is unstable in its very nature. A global government assumes agreement and consensus among human beings, which is something most people can't even acheive in their homes. It assumes that human beings are mature and calm enough to solve problems without war, which goes against our violent and hotheaded nature. It assumes tha all current governments will reaadily relinquish their right to rule peacefully (for if it was won by war, the government wouldn't stand a chance of surviving without revolt). In short, this is an impossible and unattainable ideal.