Wait, so we could end unrealistic consumption in rich countries and get 9% of our economy back to doing something useful? Sounds like a win-win.
The economy is not a fixed pie that you can just take slices from one sector and give them to another. Financial services provide liquidity that supports every other sector; getting rid of them would cause contraction in every other sector.
Yes it's like magic! Let's "JUST STOP OIL" while we're at it. Oh and end world hunger too.
Yes, and you could go back to agrarian life too! Win-win-win!
The finance industry's ability to teleport value across time and space is a massive boon for quality of life across the world.