I feel the same way, and I say that as someone whose paternal grandparents were Auscwitz survivors. Even if they found my grandparents’ prison guards at 90 years of age I would say that going after them at this point is not even close to being among the highest of national or global priorities.
It is truly a blessing your grandparents survived Auschwitz-—so few did.
How many Auschwitz survivors are alive today?
How many could positively identify a 92 year old camp guard would have been about 25 years old in 1945?