If you take a book of a thousand pages on the Second World War, in which 50 million people died, the concentration camps occupy two pages and the gas chambers ten or 15 lines, and that's what one calls a detail.
The result is that you are now experiencing what we experienced in the war in Algeria: The Israeli government says that it is a victim of terrorist activity, but this activity is less visible than the military strikes.
The Second World War claimed tens of millions of victims.
When you write a two thousand page history of the Second World War, the deportations and the concentration camps will take up five pages, and the gas chambers perhaps 20 lines.
I am not saying that gas chambers did not exist. I did not see them myself. I haven't studied the questions specially. But I believe it is a minor point in the history of the Second World War.