Because they don't talk about exterminations. Only a few it seems talk specifically about gas chambers and ovens.
Don't tell me about burning pits either. Dead or alive. It is doubtful whether that is even possible as it's being hotly debated on the skeptics forum.
You have some testimonies that are faked. Some forced. Some biased like this French resistance member championed by Holocaust promoters. If you like to continue tossing out this general claim about testimonies then let's start breaking it down.
Where is the evidence? Are there any examinations being done today on the concentration camps?
You are headed for a trifecta of error here. I wish I were a betting man.
Well, with regard to survivors of operation Reinhard, which has been discussed, there were precious few from all 3 camps. I think the standard estimate is 100 out of 1.5-2 mln Jews deported to them.
Other camps had more survivors because they served multiple purposes, such as Auschwitz. And yes, there are plenty of references to the gas chambers, and even -- heavens! -- from non-Jews who were in the camps, but not subject to direct extermination. I always recall the collection of stories by a Polish writer, Tadeusz Borowski, who was imprisoned in Auschwitz and committed suicide a few years later; "This Way for the Gas, Ladies and Gentlemen," is how the title was translated.
Which "skeptics forum" is this being hotly debated on, thereby -- in your mind -- disproving it? From what I can see, it's really just you. Magz and Atrain have left, perhaps suspecting, from your references to your own ancestry, that you are not a true Aryan. (Hard luck!) Say, how do you feel about the Japanese diplomat in, I think, Wilno/ Vilnius who helped Jews escape the Germans by providing them with exit visas? Bet you don't like him.
There is a ton of testimony, documentary evidence, and anything else. You just don't care for it. The Holocaust is often referred to as one of the most studied, and best documented, events in history. And it's the case.
How do you feel about the Nazi camp archives and such now being opened to researchers? Visit Bad Arolsen; it's in a nice area, easily accessible. This article is just one recent, personalized story, of course, but heck, you can do your own research.
http://www.washingtonpost.com/wp-dyn/content/article/2007/09/16/AR2007091600616.html