... the biggest failure of mercantilism was that monopolies ran rampant. They hired their own armies, fixed prices and gouged, and made their own laws often going against their own governments.
I would argue that this is the natural outcome of capitalism in a system where people must work to survive.
You can argue that all you want, but your position is based on willful ignorance. I gave the answer " Smith said that the primary job of Government under a capitalist system is to stop monopolization to keep trade free." and you chose to ignore it. You can read "Wealth of Nations" if you have doubts, but seems like you are pretty happy yelling from the dark.