Lots of ways to skin a cat. Find the linchpin and apply as much force necessary with as little cash possible. One can be efficient and expedient simultaneously. I agree you have to do the math to pick the opportunities that allow for offsetting/retiring as much CO2 per dollar spent as possible.
I’ve put together notes along these lines if someone with deep pockets is interested. Economic warfare is the most exciting exertion of force imho.
I agree with you these people need to be taken care of (subsidizing energy efficiency programs, such as insulating their homes and installing heat pumps to get them off of coal or oil for thermal needs), but that’s the responsibility of their government (at the moment; I would of course like to see non government efforts if the resources can be mustered).
To argue that businesses should shutdown current solutions without creating new ones lacks a huge amount of responsibility and will lead to mass chaos. New solutions to be discussed and in place before or immediately after dissolution that could put thousands on the street, in poverty or medical care.
In front of the right audience, there is an appetite.