You seem determined to think of all scientists as pure as the driven snow. Your denial as to their involvement in atrocities is unbelievable.Again, scientists do NOT "(together with others) use the knowledge to create/make real those things which without, the Holocaust could not have happened." Scientists don't make things. For the umpteenth time, engineers do.
You seem determined to blame scientists for the Holocaust, and that makes zero sense.
Do you think they were all so naive as to have no idea what they were contributing towards? Scientist get far too much special treatment from those who pay them and invest in harmful technologies. How many were paid for their contributions to the Nazi regime? Many of them were saved from prosecution by both the USSR and USA political agendas.
If you think that engineers could have accomplished what they did without the scientists, you are very mistaken.Scientists don't make things. For the umpteenth time, engineers do.