I think it should be forbidden to talk about the holocaust
Why do you think the Holocaust should not be discussed
Because the holocaust is a silly story
The Holocaust was a real, and tragic event, so you shouldn't censor anyone else's speech about it.  You should study history fully before deciding that certain events happened or not.
I think that the holocaust never happened.
Have you done any research on the holocaust to come to this decision? Maybe you could visit a museum on the holocaust or watch a documentary. You might change your mind after you become more informed.