How Did Hitler Have Been Stopped

The topic is how/why Hitler could have been stopped and how/why Hitler wasn't stopped. I think Hitler could have been stopped in many ways. These are some of the ways Hitler could have been stopped

One way the Nazi’s could have been stopped was the Kristallnacht program. The whole reason this was a thing was to see if anybody would react to violence towards jews. The whole thing could have been stopped if anybody stands up to the Nazi and said something.

My second way the Nazis could have been stopped was to tell the other nations what the Nazis were doing to them. The simple thing, they were forbidden to come to any sports event bud who’s to say any jew could have snuck in just to see freedom.

The third