There's no need for theoreticals - we know very well that Nazis used census data which recorded a person's religion to find and kill Jews(and others). At the ti

There's no need for theoreticals - we know very well that Nazis used census data which recorded a person's religion to find and kill Jews(and others). At the time I imagine giving this data to the state felt like not a big deal, but how could they know it would lead to their deaths?