Rules of Engagement exist to provide a dividing line between what we kill and what we don't: one of the hardest things for a leader to do is get his young people to actually kill people. The next hardest thing is to get them to stop.
The part I would agree with is that our White House under both Johnson and Nixon tried to micromanage targets in the North and that just played into the enemy's hands. The other unmentioned part is that both presidents allowed the traitors who were communicating with the enemy and directing demonstrations and other activities against our prosecution of the war to just continue with what they were doing. Our government was hapless against these activities and never bothered to correct the view the American People were getting from the "news" agencies and the "antiwar" leaders.
Your slogan says "fight like Nam". You'd better hope that we always "fight like Nam"! We fought under conditions you can't imagine and for sustained periods the WWII folks didn't have to deal with and we kicked butt. The very last thing on earth a VC or NVA unit wanted to do was get stuck in a corner with a Marine company on its tail.
Your slogan goes right along with the Leftist propaganda that somehow the enemy defeated us. They didn't.
It's not as catchy, but your slogan should be "Support like WWII, win like WWII - Support like Nam, finish like Nam".
In Korea at the time we set the battlefront approximately where the DMZ is today, the Chinese were exhausted. Our generals knew that and asked for a final push to clear the peninsula. The Chinese were finished as an effective force on the field but their strength in DC had become formidable. The government was still full of Communists, in the State Department especially.
What ....where the rules of engagement for Hiroshima. Nagasaki?