I think @Mimishu1995 was talking about Hitler not being inherently a monster when he was young and maybe he could have been diverted.
Also, I don’t know about Vietnam specifically, but Hitler doesn’t provoke the same visceral “worst person in history” reaction in Asia that he gets in the US and Europe. Nazis and swastikas aren’t automatically seen as signs of evil.
For example:
In Japan, an “instant Hitler costume” was marketed for seven years before a complaint from the Jewish rights organization Simon Wiesenthal Center prompted its withdrawal, the website says. And in China, it says, 14 Izzue shops were decked in swastikas in 2003 until foreigners complained.
Bangkok gets a lot of not-so-honorable mentions for what’s described as “Nazi chic,” a reference to young people such as schoolchildren wearing knockoff uniforms from Adolf Hitler’s troops. In 2013 a fried chicken take-out restaurant in the Thai capital named itself “Hitler.” It sported a black-and-white image of the man on a red sign looking awkwardly like Colonel Sanders of KFC.
Link