I met Adrian Cronauer in Washington, the year I worked there (at the Heritage Foundation, 1990-91), when I attended a talk he gave at the Cato Institute. Among other things, Cronauer debunked a lot of the manner in which he was portrayed in Good Morning Vietnam, including that he wasn't set up and forced to leave Vietnam before his Air Force hitch expired, and that he never befriended a Viet Cong terrorist. Though he also admitted, "Robin Williams is funny. I'm not." He did get to meet Robin Williams before the film premiered. When Williams shook his hand and said, "I'm glad to meet you," Cronauer replied, "I'm glad to meet me, too." Who says he wasn't funny? But he did agree that Good Morning, Vietnam went a long way otherwise to show American grunts and airmen and otherwise in 'Nam weren't just the baby killing rapists into which their images were distorted in due course.
Regardless of what he felt like politically, he recognized the fact nobody seemed to recognize during Vietnam, which was that there's a difference between the people who are making the policy and the people who are carrying out that policy, the military.---Adrian Cronauer (who was a lifelong Republican), interviewed after Robin Williams's suicide.
RIP.