It is a general observation of mine that when people talk about "twisted right wing economic philosophy" they often mean "mainstream economics"
Now you can decide to take that in two completely different ways depending upon political persuasion
But while it is true that there is a lot in economics, macroeconomics especially that is a bit... sketchy... simple stuff like opportunity cost, scarcity, comparative advantage, externalities, deadweigh loss, supply and demand are imo not too far off physical laws and so arguments like
@Magdalia 's maybe ought to be best expressed directly in those terms. It then becomes clearer whether your argument is with the building blocks of basic microeconomics (in which case imo it can be disregarded but others of twisted left wing economic philosophy may disagree) or if it's with how he fits the known facts within these frameworks and if he's missing or twisting something. I certainly find his arguments convincing but that shouldn't come as a surprise
(I do wish he'd stop claiming that net contribution to the exchequer is the same thing as net contribution to the economy though)