They're not wholly wrong, in the case of wolfenstein, for the devs of it clearly didn't give a shit about historicity. My favourite part is the "Christian zealots" in the Nazi regime when the nazis had already started an attempt at eradicating Christianity before the war's end and planned a complete annhillation after the war, going to show the retardation of whoever was gathering materiel for the story writing. A smaller bit though less important was that hitler and co. hated the kkk.