What do you do to a Jew who has ADD ? You send him to concentration camp
Are you familiar with the use of the term Concentration Camp in the context of the Holocaust
Yea, tell me about it.
It's not right to make jokes about sending Jewish children to concentration camps, even if you meant it in a different way.  During the Holocaust, millions of Jewish people, including children, were rounded up and concentrated inside camps where almost all of them were systematically murdered.  Making references to those events being somehow favorable is not acceptable in society.