the Constitution is just a piece of paper. People must understand and want what it says and act to make it happen, it can't do anything without us.
It did a fair job before it was perverted in 1913 by stealing the representatives of the states, turning the senate into a second House, competing with the legitimate representatives of The People to bribe us with our own money for votes.
The only working, motivated force against runaway federal government was the states. When they lost their representation they basically ceased to exist and the Republic became a Democracy.