Or, perhaps, your own understanding of physics is bullshit because, well. Physics is bullshit. And this is why physics hasn't accomplished anything significant since the atom bomb. It's mental masturbation.
Well here's some things physicists have done after the bomb that I thought of off the top of my head: Lasers (and laser-related stuff like laser spectroscopy), Magnetic Resonance Imaging, Holograms, atomic clocks, high temperature superconductors, tunnel diode, scanning tunneling electron microscope, atomic force microscope, stochastic resonance, charged coupled devices... All kinds of stuff that maybe isn't as high profile as the atomic bomb, but are essential to things you take for granted, like flash memory and liquid crystal displays in your electronics or the Hall effect sensors in your anti-lock brakes.
In any case, leaving aside the obvious hooey , if physics were mental masturbation then anyone could do it. It's the fact that so few can do it that makes so many people see it as a pointless and trivial exercise.