Question

describe the reaction of masses against nazi barbarities

Answer 1

Nazi barbarities were targeted against well-defined racial groups like Jews and the Slavic people of Eastern Europe.
In the initial years of Nazi rule, the majority of the German people actually benefited from the economic improvement that took place under the Nazis.
 Racial prejudice against Jews was also fairly deep rooted among Germans. Hence, they did not see any reason to actively oppose the barbarities of the Nazis.

There were, of course, honourable exceptions even among the Germans who actively opposed the Nazis.
 In fact, there were even assassination attempts against Hitler to stop him from implementing his evil policies. But those attempts were failed. 

Towards the end of the war, as it became clear that Germany was losing the war and that Germans would be punished for their crimes, many Germans claimed ignorance of the barbarities of the Nazis

Answer 2

Answer:

The reaction of the masses against Nazi barbarities were:

1) Not every German was a Nazi. many people resisted nazism facing police repressions and death.

2) Many people were passive onlookers, they were to scared to act, to differ for protest so, they stayed away. Ordinary Germans observed silence on the ongoing process of brutality.

3) Some secretly recorded the horrors.

4) Many Jews begin to believe in the stereotypes popularised about them.