I became CEO of Lockheed Martin because I knew I could have more of a positive impact from inside the system than by trying to tear it down.

Institutions aren’t the sum of their parts—their behavior is dependent on human participation, but is largely independent of the values or goals of the participating humans.

Unless you’ve identified a specific weakness and have a plan to exploit it before going in, your participation will probably benefit it more than any opportunistic harms you can do to it while participating.

it's impossible to change them from the inside. the capitalists own them and can fire you if you do anything to change them (and will reward you if you further their objectives)

Disrupt from the inside. Ideally with shrapnel

Even if you could change the system from the inside, there wouldn't be an opportunity. The military industrial complex, and the entirety of corporate existence for that matter, is inherently extremely inefficient as is. I'm sure everyone is already aware of the old simple sabotage field manual; the organization sabotage suggestions are functionally equivalent to a modern MBA's education. Companies care about nothing but stock prices, and pursue short-term profits to the exclusion of any strategic thought.

Like, F-35s were just delivered with weight plates instead of radars.

There would be opportunities for direct mechanical sabotage, but without cooperation amongst coworkers you'd only succeed at getting yourself in trouble when you're caught.

If you are looking for something you can do that will both get you paid and have a positive effect on the world, get in touch with a union for your industry/occupation. Organize your workplace.

Please read "The matrix" on the hidden wiki @ http://zqktlwiuavvvqqt4ybvgvi7tyo4hjl5xgfuvpdf6otjiycgwqbym2qad.onion/wiki/The_Matrix note:requires Tor browser to access

Should people boycott against taking MIC jobs or take the jobs to prevent worse actors from taking them?

All joining will do is tie your success to them.