The article was not talking about Hitler!
It was about Stepan Bandera who was a ver evil guy and led the Ukrainians who implemented a program of slaughtering anyone who was not pure Ukrainian. They slaughtered Poles, Gypsies, Jews, anyone who might have a claim on the territory that they wanted.
And they did not do it politely in concentration camps. They came in the night with pitchforks and axes, and grabbed babies by the legs, bashing their brains against the wall or the edge of a hardwood table. And they shot a lot of people too like the Jews of Baby Yar.