The “good” 80% of the military would be fighting....literally....the “bad” 20% of the military in your scenario.
There is a two-word term for this....it’s called “Civil War.”
Understood.
But the question was under what possible scenario would that propose a viable option to them? That 20% of the military would get its ass destroyed by the other 80% in a heartbeat. The use of force is simply a no-win for American liberals.