IzoBar, it is legit to look at our own sins, this does not excuse the murderers. We have this discussed re:mitzrim who prosecuted Jews eemingly to fulfil Hashem’s promise.
I don’t think it is likely “zionist” fault, as they were a significant part of those who survived and prospered after that. I heard from R Steinsaltz that we are too close to WW2 to understand it – gemora writes about reasons for BM destruction hundreds years later.. Now, 30 years later, ot may still be too close