Congress is just a little bit important to the well being of the United States, you all know that, right?
Without it, the other branches of government would have the power to do whatever they want, whenever they want. I myself prefer the slow yet sure advancement of civil rights over dictatorship and genocide, sorry.
Only issue is, if any branch got too much power (as is essential for a relatively peaceful takeover), they would subtly take our rights and means of defense away. AR-15's turn into bolt-action rifles, means of communications become tapped, and information/ education become heavily regulated and standardized, effectively making it so that even fighting to the death would be an abstract notion.
Without it, the other branches of government would have the power to do whatever they want, whenever they want. I myself prefer the slow yet sure advancement of civil rights over dictatorship and genocide, sorry.