the forest doesn't get healthy again by making the big trees bigger.
If I'm going to indulge your flawed metaphor/analogy/whatever it is...
What liberals want to do is cut down the big trees to make fertilizer for the saplings.
Doesn't seem like the optimal solution to me.
As for percentage of incomes back into the economy, I don't doubt it. Where is that income coming from? The fruits of their labors - which overwhelmingly comes from the machinations of the private sector economy (well, for now it does). One of the many important cogs of the private sector is capital investment by those evil evil EVIL rich guys (like Bain -- another skeleton in the boogeyman closet for you to demonize no doubt)