Jefferson:
In the wake of Marbury v Madison, Jefferson wrote, in a letter to Abigail Adams, "... the opinion which gives to the judges the right to decide what laws are constitutional, and what not, not only for themselves in their own sphere of action, but for the Legislature and Executive also, in their spheres, would make the judiciary a despotic branch." Simply put: if the Supreme Court has the power to say what is and is not constitutional, there is no limit to the court's power (and hence, to that of FedGov).
“Simply put: if the Supreme Court has the power to say what is and is not constitutional, there is no limit to the Court’s power.”
Again I say, a well-written Amendment cannot be overturned by the Supreme Court (I hope; who knows at this point).