Jim and Diane - HAD THEY WANTED TO ... GAS TRAINS and Other Nonsense

First of all, had the Germans wanted to or planned to kill the jews, a nation of people whose scientists were 50 years ahead of everyone else couldn’t come up with anything better than expending HUGE resources transporting 1000s of people hundreds of miles to the treacherous Polish-Soviet border, establish a huge network of camps and living facilities to then kill the occupants in nonsustainable facilities WITH BUG SPRAY.

Second, had they planned extermination within the holocaust nonsense - something slightly MORE efficient.
The large TRAIN GAS (Fumigation) CHAMBERS.