It isn’t hobbling the federal government. It’s strengthening it by giving powers to Congress and the states where it belongs. It’s hobbling the executive branch to prevent them from ignoring the will of the people via Congress.
The problem is that pollution easily becomes someone else's problem. If Wisconsin decides that Lake Michigan should be it's dumping ground, what recourse is there for Illinois, Indiana, or Michigan if there can be no federal oversight? Inter-state war is not really something I look forward to.
