There is no point in arguing. you obviously have you reasons why you feel it doesn't work and i have mine for why it does.
If you want to understand physics at the quantum level, I'd suggest checking out the Resonance Academy. It may help with the perspective that claims this is pseudoscience.
If it works, I keep it and spread the word. If it doesn't, I disregard it. Next you'll claim that breath work doesn't super oxygenate every cell in the body and that we can't control our autonomic nervous system.
If one person can do it, "their special", If we can teach others and they are successful, can find growth, healing, strength, vitality, etc, perhaps it's not done in a lab, but to me that makes it scientific. It's something we proven with repeated results.
And that's good enough for me.