Sure but there are problems in that any and all German regimes are very very likely to seek Anschluss, the Sudetenland, and West Prussia.
And once you begin tweaking the European security order to that degree, war seems inevitable.
This. There were no death camps on 3 September 1939, when UK and France declared war. Germany with different ideology invading Poland would cause similar reaction. WW2 was not fought over Holocaust.