And as someone who has played in horrible bands, I say, screw artistic integrity, it's 'merica. Get paid. These guys had kids, right?
Don't see anything terrible there. You are talking out your ass.
The mass of helium is 4.002602 g/mol. Divide by Avogdro's number, and a single atom of helium weighs 6.646E-24 g. The difference in mass is what powers the sun. Parent is simply making the same argument on the scale of a proton split into its parts.
(disclaimer: I know, blabla deuterium, not protons and neutrons. However, see the definition of a state function.)