I suppose I should have put in a clause about parasitic drive loss. The drive loss depends on the type of supercharger, and there is flow involved in that also, so it's not a perfect comparison.
Anyway, you're trying to say that turbos don't use any power? So a turbo doesn't present any restriction to the exhaust system, and there isn't any pressure drop across it?? So it doesn't affect exhaust scavenging and cylinder filling because there isn't any difference in pressure from one side of the turbo to the other?
So it goes against the laws of physics, I get it..