Nobody cares what the radical Right says or thinks. Sovereign citizens, individualist anarchists, fringe militia groups, and such have no juice with anyone or on anything.
The solution for war outside the Left is more nuanced and varied. First, the cause of a conflict has to be understood. The US has never been particularly good at seeing this before it gets out-of-hand. The non-Left grasps that wars can be political, economic, ethnic, social, or have a myriad of causes besides just greed and money. The Left sees the cause of a war as greed and money and everything else that occurs is incidental to that underlying cause.
For example, I've said repeatedly, that one of my preferred solutions is "Let them fight." Don't stop the war, let it come to a natural conclusion where the combatants, without outside economic or political influence, agree to an outcome.
Outside nations staying out of civil wars is another excellent example. The Left in such cases is all too willing to jump into one when one side is losing and economically being trashed. Staying out and letting local politics settle these is usually, not always but usually, best. These are wars about ethnicity, social expectations, and internal governance, not economics.