@fluffy @Wyatt I think that the Holocaust officials don't talk about the Sonderkommando as much because it is a bad look that Jews helped the Germans to kill other Jews. They say they were forced, but they could have refused and faced punishment. Wouldn't it be better to die than to kill your own people?
Carlo Mattogno has three scholarly books dedicated to examining the Sonderkommando testimony and claims. All the books are available for free as a pdf.
holocausthandbooks.com/index.php?page_id=44