He was always going to go after all of Europe....
Citation needed.
Yes he hated slavs but he hated jews more and more of them were in the west then in the east.
I mean, TIK history has a bunch of videos on his relationship with jews, he even called the doctor who tried to save the life of his mother a "noble jew" and bemoaned that there weren't more like him, and looking at what the views of jews were globally back then, he was not that far from what the then norm was, and even then, the initial plan was to push jews out back to Israel or Madagascar, the genocide as we saw it was basically a "last minute" thing since their other plans to kick out the jews could not happen.
I mean, just look at the writings of Henry Ford about jews.
Or the various pogroms in the Russian Empire.
Or the invention and spread of the protocols of the Elders of Zion.
Or the Dreifuss affair.
Or what the views of the ideological forefathers of your beloved banderites and what they did to jews.
FFS, the Ustasha was so brutal against Jews IIRC the frigging SS was disgusted and wanted to take them out.
So, yeah, Churchill not being a retard might have prevented the Holocaust.
And British objections about Jewish migration to Mandate Palestine not being there would have meant Israel appearing earlier.
The USSR were hoping he wouldn't have invaded them do to the fact they were not ready for such a war so soon and were hoping the west would take all of the tension even before the invasion if Poland.
Remember the deal between russi and Germany?
Even setting aside Hitler's hatred of Slavs and
drang nach osten ambitions Poland in its then state had sizable minorities of Germans and territories that were a central part of the German national myth, like Konigsberg/Kaliningrad/Kralowatz or however the Poles called it and the Danzig corridor would have been a massive apple of discord between Germany and Poland.
And a major reason why Hitler came to power was the revanchism post-WWI and the outright hypocrisy and stupidity of the winners in that war.
His main problem with the Frenches, for example, came from WWI and he literally had them sign their surrender in the same rail wagon where the German surrender was signed ~20 years before, and the Germans remarked that "WWI has finally ended".
Whatever came into power in Germany, social-democrat, commie, conservative, one of the myriad other fringe rightwing orgs made up of revanchist former soldiers, it would have been angry about the outcome of WWI and pissed with the Poles.