I thought other people besides the Jews died during the holocaust also?
Here's the thing about that. 50 million people died as an effect World War II. Some in combat, the vast majority as non-combatants. The Nazis targeted many groups in their mission to rid the world of "untermenschen". Gypsies (Roma), Homosexual, Intellectuals, Communists, people with mental or physical disabilities, and just about anyone who didn't goosestep to the music of Hitler and his henchmen.
Jews, however, in the Nazi ideology, held a special place. Unlike other groups, who were singled out for their beliefs, or their predilections, or individual traits that Nazis considered defects, Jews were targeted for total global annihilation. If they never set foot in a synagogue in their life, if they never uttered a single Jewish prayer. Even if they adopted the xtian religion and married into xtian families, if they had a Jewish a relative back three generations, they were targeted for extermination.
The Nazis weren't satisfied with destroying Jews in Germany. Had the Germans defeated Russia, they had plans to exterminate everyone with Jewish ancestry in all of Russia and the Soviet Republics, another 5 Million Jews. They killed more than a million Jews in captured Russian territory. When America entered the War in late 1941, the SS was discussing how to round of Jews in occupied US territories and the difficulties because America didn't keep records or Jewish ancestry.
The Holocaust was a human tragedy to be sure. But, for the Jews, and the special rancor Nazis held for them, combined with an already small population. The Holocaust was especially painful.