Auschwitz was at the end of a long process. It did not start from gas chambers.

This hatred was gradually developed by humans. From ideas, words, stereotypes & prejudice through legal exclusion, dehumanization & escalating violence... to systematic and industrial murder.

Auschwitz took time.

Annual morbidity in the 20th century, before and after vaccines:

Measles:
Before: 530,000, After: 47

Mumps:
Before: 160,000, After: 429

Rubella:
Before: 50,000, After: 3

Diphtheria:
Before: 20,000, After: 2

Smallpox:
Before: 30,000, After: 0

Polio:
Before: 16,000, After: 0

The idea that you *must* coexist with and listen to people who are cruel, unjust, and just plain unpleasant to be around is the logic of abusers, by the way