The last time a convention of the states was called, the southern states went instead to Montgomery to commit treason.
In any case, Woodrow Wilson destroyed the Constitution.
One of my fav quotes is "The Constitution May Be Flawed But Its a Whole Lot Better Than What We Have Now" essentially meaning we have basically put the thing in the shredder and make it all up as we go now.........
As to the Montgomery bit........ One has to observe that the boys in Montgomery would not have let us descend into the huge overreaching federal goverment that we have today.
Every time you disagree with the big central federal goverment crowd you get accused of treason......