The Munich agreement wasn’t even popular in it’s time, the anti-agreement protest in Britain was three times larger than the crowd welcoming Chamberlain.

Also, slightly related tangent. Western politicians will often try to justify military involvement by invoking “appeasement” or “Munich”, but Saddam or Khomeini are not Hitler, the situation is nowhere near the same. If there’s any country that has deserved an early military intervention instead of appeasement, it’s America.