If your definition of real science is something that has good prediction/application potential, that's a rather unusual definition of science. Are mathematicians, theoretical physicists all talk as well ?
Mathematicians aren't - you can prove their correctness over abstract planes and use them to for example run a hedge fund or a software company into trillions of revenue when making testable predictions in macro reality.
Theoretical physicists that use mathematics to make testable predictions are too. You can use them to also make electric engines, statistical extractors and accurate physical simulations that are corroborated with empirical evidence.
If the prediction is not testable, is unfalsifiable, is unreproducible, is not independent and is not supported by overwhelming evidence - it is bullshit - no ifs, buts or ands.
It can only be 'proved' in the 'contrived' world of pure mathematics... what bullshit!
The idea being, that you'd have to back pedal, and change your qualification. Which I could then use to apply to other fields, that you deem as 'quackery', and thus undo the foundation of your argument.
Instead, you just denied the reality of what you said... I didn't count on that. Well done.