A good discussion of politics always ends up with the question "How To remotivate the armaments dealers who drive bad policies and choke out real progress?"
Most of the problem is that legislators are good at getting elected, but not so good at legislating, so here's a suggestion:
Tax arms production and give the money as subsidies to electric farming.
What's electric farming? Each unit of farmland would get a large subsidy to build a battery and solar complex to run electric farm equipment. Listen!
Tractors are already power sources for a wide variety of equipment. Tractors need to be heavy, so batteries to replace their diesels could be heavy. Farmhands already know how to hitch up equipment, so they could have several battery packs being charged by a barn with a megawatt solar roof.
The battery packs would be used as needed, and could even be placed at convenient work locations. No need for fancy lithium batteries, just use all the lead-acid batteries that will be replaced in lightweight applications.
At the same time, armament makers could be heavily sin-taxed and the money used to subsidize the farms. It's very likely that armaments will be seen as a loser for investors, and the prices for arms would have to go up, reducing armed conflicts worldwide.
There are things the government has to do, because corporations just follow the money. But the government CAN control the money. Print it, give it to farmers, reducing CO2 production, employing more people at good occupations building electric tractors compatible with current equipment.
A battery pack and electric motor can be standardized like diesels are standardized. Most farm equipment is used only certain times of the year. No point in each piece having an internal combustion motor. And farmers could have electric pickups to go to market.
Fair market solutions to serious problems of farm production and weapons domination of the political process. We just need to educate the legislators. Who would complain? The arms makers can shift to farm equipment, solar panels, transport hybrids, and so on.
Win, win. A concrete proposal to reduce the military component of the MIC.