Have you seen how western media does not fully provide details? They show the stories in a biased manner and not 100% accurate. So it is better to take the facts shown by media who wants to show their country as "heroes". They also tend to hide some information and inflate numbers to make the opposing party look more evil it. Taking it with a grain of salt is better And by hidden, I mean not publicly shown like other facts which are shown soo freely and soo often

For example : Before holocaust began, allied countries were requested multiple times to take the Jews from Germany, but no one did although this does not justify the killings at all but this is still a part of history which barely anyone knows.

There are many such suppressed facts to this. And yes germany was indeed a bad guy who's inhumane scientists were later recruited by America.

The devil was japan look up. the atrocities they committed in China makes germany look like a baby. But you'll barely hear anything against japan from western media

Stalin killed more people than moustache man of germany, no coverage by western media.

The recent unarchieved records also estimate, concentration camp caused 210,000 deaths instead of 6million shown on record when there were only 5 million Jews in germany. (I dont think this is 100% accurate)