Hamilton deemed the Senate to "exclusively possess the power of declaring war. The President has the responsibility to address the State of the Union. A Presidential War by its very definition is unconstitutional, as are preemptive wars. They are antithetical to republics and democracies and common under monarchies. Otherwise, the Declaration of Independence might have never existed.
The problem is that the War Powers Act isn't a legal document as much as political treaty. The onus is on Congress to take responsibility, politically dispute this being a police action, and perhaps defund. Though, why would they when the War Powers Act sole authority was to deflect accountability from Congress? If the Libyan War fails, Hillary Clinton has been set to accept the criticism for the decision, not Congress.
Instead, Americans should be fighting to restore Congress' rightful duty as a check on presidential power despite any history to the contrary. I would argue that the War Powers Act itself is unconstitutional. Furthermore, we should be fighting to restore Congress' sole control over money creation, against the waging of monetary wars.