What you describe has little to do with "gish gallop" and would be far less effective (because it's too obvious and the other side can just ask you to provide s

What you describe has little to do with "gish gallop" and would be far less effective (because it's too obvious and the other side can just ask you to provide sources of your own). A gish gallop is when you make claims (often citing pseudoscience sources) faster than someone arguing in good faith can address them, and instead of enganging with refutations you just deflect superficially and switch to other claims.