Can we stop blaming an entire country for what a small percentage of the population did 80 years ago?
Not even this small percentage is alive anymore.
The Germans born after the WWII shitshow don't deserve this blaming. Not even most people who were alive 80 years ago.
No one blames today's Germans for the actions of our ancestors. However, there is an obligation for every human, but especially for us as their descendants to ensure that the events that happened in 1933-1945 - the organized extermination of six million Jews and of hundreds of thousands of other people the Nazis deemed unworthy (travellers, homosexuals, the disabled, political dissidents, ...) never happens again.
I recommend a visit to the KZ Dachau (maybe an hour of travel with public transport from Munich, I'd say it is the one that is reachable for foreigners the best due to its proximity to the airport) or one of the numerous other historic Nazi sites - not just to Germans, but to everyone. Only when you see the evidence of what happened, you can really grasp it.