I thought we learned this lesson in Vietnam, but maybe not.
Ah...and now we come to the root of the problem: You don't have a clue about asymetric warfare.
Read up on the Linbacker campaigns in Vietnam. They brought the North to the brink of defeat...and not one bomb was dropped where we were fighting the guerillas.
You might also want to take a look at the ideas advanced in "Learning to Eat Soup with a Knife." It's a study of why the Brits succeeded in their guerilla war in Malaya and we failed in Vietnam. The author concludes that trying to fight Vietnam like we fought WWII was exactly what did us in.
Lastly, we won in Vietnam before we lost. It was geniuses like you that lost it for us.
Following your logic, Malaysia, Nicaragua and El Salvador should all be Marxist police states now.