Truth of the matter is... (or at least my opinion) the feds need some authotity to enforce the constitution.
I'll all for less goverment power both state and federally (hell i voted ron paul) but we just cannot allow these states to bypass and ignore the constitution and the citizens within those states both living and travelers to suffer for it.
"...with liberty and justice for all." (Must be 21. Void where prohibited. Some restrictions may apply. Not available in all states.)