Not true. There were people in Germany during WWII whom tried to defeat Hitler and were placed in concentration camps because of their activities against the Third Reich. Many were killed in the Concentration Camps just before the end of the War on Hitler’s orders, because he did want them to have their stories to be told because than the misguided people would see that Hitlers Mein Kampf, The Third Reich and the 1000 Year reign were just delusions of sick individual who suffered from syphillis. Have you ever heard of Dietrich Bonehoffer? There were other Protestant Ministers whom died too. What about the assassination attempts 2 on Hitler whereby many german generals were blamed for the underlings who carried out the attempts. Rommel was just one General sacrificed because he did not believe Germany would win the war. There were others too, whom went against Hitler. There were others whom fled the countries like Austria when Hitler took over power. There were even many partisans whom hated Hitler. Yes Dresden lost many lives. But it was hoped the germans would surrender. The Allies believed to use an atomic bomb on Germany would have devastating effects on all of Europe. The Kennedy Family lost a son during WWII on a secret mission (plane exploded in flight) to bring some type of Bomb that would cause significant harm to Hitler - bunker buster? nuclear? what type of bomb is unsure!
Sure, there were exceptions. But it was a very small minority. Btw, if you want to bring the Kennedy family into the discussion you should mention that old Joe Kennedy was a pro Nazi.