Rav Avigdor Miller is not the final Posek on the causes of the holocaust, many including the Lubavicher Rebber disagree with him
“Expanding on Avram in MD’s post, if one feel drawn to search Google for natural disasters and tragedies, the appropriate response to becoming aware of these events would be take them to heart and have at a minimum a hirhur of teshuva”
Saying we are all sinners and need to do tshuva sounds very similar to a philosophy of a relgion started by a man whose big birthday bash is coming up this weekend