system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:How is the Holocaust seen as the worst genocide in human history, even though Stalin killed almost 5 million more of his own people?
gpt
After reading the other comments i try a different approach.

What was different about the Holocaust and other genocides? 

I think a big reason for the different perception of the Holocaust is how it was done and by whom. The Nazis conducted the Holocaust in a very bureaucratic manner. It was very methodical. Very methodical done by very smart people. People who arrived at the camps were sorted and marked like cattle. The Nazis searched for jews everywhere. Everywhere! Escaping this was hard when you didn't flee early enough. They searched for them even if they posed no threat just to get all of them. They hunted them everywhere even in the occupied regions. Compared to Stalin it wasn't about  silencing/killing people who were deemed a threat to him or the system, it was about exterminating an **entire race**. Just think about it, it was about purifying an entire continent. Killing everybody who was not regarded worthy to live. This was done not by taking every jew and shooting him on the spot, that was not efficient. The Nazis tried to find efficient almost **industrial** ways to kill millions of people. They were first used to build weapons. Weapons like the V2, which were revolutinary at this time. See the contrast here? Brilliant weapons developed by smart people, the "same" people trying to exterminate a race. Futuristic weapons, which would later be the basis of the apollo program, build by tortured slaves, where do you find these kind of contrasts? Iam no expert of Holocaust or other genocides but other holocaust often seem more "improvised". Also a big reason for the different perception is where it was done. Germany. Germany is now a western country, always known as a powerful industrial country. The country of the "Dichter und Denker". A country with many of the greatest poets and composers. Before the war a big part of the nobel prices went to german scientists. Germany was a respected powerful country with open minded people. But some years later....

Genocides were often "Mittel zum Zweck" getting rid of an opossing political force and their basis for example. For the Nazis and Hitler it was the "Zweck". Thats a big difference to other genocides as well. When the red army advanced in the east and the western allied in Italy and France the Nazi intensified their killing even if it wasted a lot of war ressources because if they the lose the war they at least kill as many jews as possible. Think about that.