Why is this troll science wrong?

You can't remove a proton because the proton is held in the nucleus by the "Strong Force", which is much stronger than the electromagnetic force that keeps the electrons bound to the atom. You can remove protons and neutrons from the nucleus; that's what "splitting the atom" means. Doing it is what makes a nuclear bomb blow up.

So basically you "could" do this but you'd probably die... and the gold wouldn't survive the blast.