Frankly, knowledge and awareness were mixed, as would be expected, with many of those threatened with death unable to believe or accept what was happening around and to them, others shielded from it in various ways, some keenly aware, and many, many worried about what they were hearing and witnessing. If there were no awareness and no "clue to what was happening," then please explain, along with the statement in Lewin's diary, why there was Jewish resistance--and not just the famous Warsaw uprising but smaller and less notorious movements in Vilna, Kovno, Minsk, Pinsk, Novogrudok, Lvov, and elsewhere along with many small and isolated individual acts. Explain why some Jews worked to get word of the mass murders out to the Allies. Why underground Jewish newspapers carried stories about the extermination. Why Jews keeping diaries expressed their fears and recorded rumors and facts which they were hearing. Why newspapers in Allied countries, which we were discussing a few pages back, were running stories about the atrocities. Why the Allies issued statements by late 1943 threatening Nazi leaders with punishment for their crimes.
You can try having it both ways -- that there was no outcry and all Jews went like sheep to slaughter AND that newspapers in the Allied nations and Jewish organizations overplayed the reality and raised an out-of-proportion outcry -- but doing so only makes it look that you have an ax to grind.