Gee, I was hoping to just take the time to transcribe the video and add a couple of comments here and there without having to defend its content.
The necessity of demand is the 'elephant in the room' because so much of the political argument so far has revolved around increasing benefits for the suppliers, rather than increasing demand. The argument has been, "we're supposed to make the wealthy wealthier, and then -- magically -- they will create more jobs."
If the necessity of demand isn't the elephant in the room, then why isn't there broad political support for higher tax rates on the wealthy? Why isn't there broad political support for economic stimulus packages? Why isn't there broad political support for universal health care, a significant expense for poor and middle-class Americans? Why isn't there broad political support for lowering taxes on the poor? Why, instead, do I keep hearing such balderdash as, "The poor pay no taxes at all"?
Nobody's saying that business people don't add value to the economy. What people like this guy -- and me -- are saying is that they don't add value all by themselves. And, if that's a point that people can agree on, then the very next question is naturally, "Why do the bulk of our economic strategies focus only on benefiting them then?"
If a venture fails due to low demand, yes, some investor and some capitalist assumed risk and have presumably lost something. But, worse still, are all those other people -- those employees -- who didn't have anything to risk in the first place, and are now back to looking for work again. In your scenario, there wasn't any net job creation, there were just some positions temporarily filled.
And, anyway, if the business people do the market research they're supposed to do first, and the demand isn't there, they won't bother starting anyway.
Let's stop making up fairytale scenarios. Let's start getting specific. Let's look at things like leveling-off or falling consumer demand for gasoline [1], and then let's look at the tax breaks afforded to oil companies [2], and let's ask ourselves: if we're doing everything right, if we're granting these companies record profits [3], then why haven't they lowered gas prices to increase demand like the magic formula says they will?
[1]: http://soberlook.com/2012/03/us-consumer-is-saying-no-to-hig...
[2]: http://www.washingtonpost.com/business/economy/how-much-do-o...
[3]: http://thinkprogress.org/climate/2012/02/08/421061/big-oil-h...