Earlier quoted context omitted.
I take a very very dim view of Keynsianism prescriptions, although their analysis may be correct (sometimes). Let's agree that we're in a demand constrained economy (I am not sure but it may be the case). 1) Why should you believe that governments are good at readjusting the economy to "unconstrain" it from demand? From Halliburton/Iraq to Solyndra to Fisker to 38Studios ( https://en.wikipedia.org/wiki/38_Studios ) t…
Your first point is a deeper problem that goes far beyond economics. We do have a government corruption problem. As for #2, the problem is that economic demand and economic activity means doing anything at all , including fixing environmental problems. Imagine there's no growth. Why adopt solar power then, and who's going to pay for it since there'd be no investment capital? Nope, just run those coal burners forever.…
It's fallacious to argue that because there's no net growth in some economic indicator, say 'GDP', that there can't be growth in specific sectors.
Secondly, growth is not a measure of demand, especially as demand shifts. People value having clean skies, and breathable air. And there is also a obvious value in 'not having to dig in mines for your energy'. Depending on how you measure your economy (let's say we unbeknownst to us give a higher weight to miners who dig underground vs. laborers panel assembly factories in our metric), 'upgrading' to solar could incur a 'contraction' instead of 'growth'.