The Constitution says nothing about whether or not Congress should overrule the States, nor does it imply that when and where it can do so, it should only exercise that power in extremity; that may be your legislative philosophy, but such an approach is hardly Constitutionally mandated. In truth, it is up to Congress to decide when and how it ought to exercise its legal supremacy.
Thats why I said implies.
I said nothing about mandates or legalities, simply that the amendment leads me to assume that the framers of the constitution (which oddballs like Paul seem to see as gods) thought that governing at state level was the better option in virtually every circumstance and federal law making should only be used in the situations where state level law making just doesn't fit the bill.
All I'm saying is, that's what I think they were thinking, when they wrote that amendment. A mad constitution-fetishist like Paul may be wont to translate a perceived inference into a legal stipulation. Frankly I couldn't care less if they thought the sky was green.



