That's a natty turn of phrase but I'm calling bullshit.

Rich people invest with the excess financial wealth they have after they've consumed hugely more than a poor person.

Give me more money and I can afford to eat better (reduced healthcare burden), can repair my house (reducing total resources needed over the lifetime of the building; and again there are health implications). Give that money to someone rich and yes, they will invest - sucking more value away from the populous without producing more value - but they'll also do things like buying a private jet which consumes/pollutes hugely and wastes resources.

Perhaps some of the wealthy won't be able to have private islands and maintain their more liquid assets, for shame.

Why not cooperatives and micro-investment? Why does a rich capitalist have to be the investor and suck all the value from the system?

Most developed countries have unemployment permanently somewhere between 5-10% or even more during recession. Some, like Spain, have closer to 25%. Reducing labor supply may be the only answer.

It's not that I don't agree with you in principle. But you can only gain productivity if there are things for people to do. The fact of modern society is that we are running out of jobs.