Everything is backwards now. The states are bystanders in government now, instead of drivers of government.
Democrats tried using states like Colorado and New York to pass silly gun control laws just to boost Obama's political position, not because it was a necessity and desire of the people of those states.
-PJ
The autonomy was magnified when the Supreme Court ruled in 1984 that agencies are entitled to heavy deference in their interpretations of laws. The court went even further this past week, ruling that agencies should get the same heavy deference in determining their own jurisdictions a power that was previously believed to rest with Congress
Scotus is less and less inclined to veto national laws, AND regulations, citing "heavy deference."
Meanwhile, courts yank state laws as if they were belly button lint. This would not happen if the States ran the Senate. There would be zero chance the Senate would consent to judges hostile to the 10th Amendment.