What are the best counterarguments for the "four basic truths" he claims are broadly accepted? Taking the first claim as an example (decline in demand leads to

What are the best counterarguments for the "four basic truths" he claims are broadly accepted? Taking the first claim as an example (decline in demand leads to unemployment and recession, because sticky wages etc.), I suppose one could argue that just because we've seen this happen before doesn't mean it's an inevitability of human nature. I can imagine a society with a higher level of cooperation and shared responsibility, where everyone _does_ agree to take a small reduction in pay so that others can stay employed and the overall economy suffers less. If you agree with that argument, my best response to it is that these macroeconomic "theorems" are supposed to be phenomenological rather than prescriptive. They have predictive power in the present economic system but are not necessarily useful in a society radically different from ours. I agree that it would be an error to treat these emergent properties as some sort of inevitable laws of nature, which is a tendency that I've seen in debates.