Jew's didn't understand the ovens either.
Lets be clear: there are people that hate you and want you dead in the most horrible way possible. Prepare to defend yourself, you will not be given the option to change their minds or understand them.
There were Jews who understood what was going on and left Europe before Hitler closed the gates. The rest did not and had to deal with it. Maybe this will be a wake up call to the parents and their child.