Problems are easier to grasp if you see only one cause, if you
see the one fulcrum where you can put your lever. But no real
problem is that simple. But there's the apparent fulcrum. If it
is there, it must mean something and if we aren't having an
effect, we better just push harder, get more people on board to
stand on the lever and bounce up and down.

Bunk. All real problems have many causes. All real solutions have
many fulcrums. Thousands of them.