"To fix traffic, we need tolls"

Tolls are just a form of paying people to go away (if you don't take the toll road, you're paid by getting to keep a few dollars in your pocket).

It only reduces traffic for you if you are one of the ones that didn't go away.

If the toll discouraged you, then the traffic problem isn't solved for you; you're taking a bunch of non-toll roads riddled with detours and intersections.

We can't call that a solution to the traffic problem. That's like saying, "we can reduce congestion on this ethernet switch not by better firmware and protocols, but just getting people to stop web surfing and watching videos, and go do something else".