Can we please stop repeating this same old attack on economics. Just because economics 101 introduces people to some simplified assumptions does not mean all economics is like that.

That's like saying, well I was reading a programming book about a Ruby and then I laugh at the professor threw the book in his face and said 'One can never make an Operating system with this'.

Honesty, if you truly believe that about economics then you simply have never spent time to actually learn and engage with a wide verity of economics that exists.