One wonders on this: the attitude towards the Slavs was little better than that to Jews, etc. But the Germans actually considered themselves relatives of the Brits/French/US, could this be a leftover from when Kaiser Bill was King George's cousin?
The Nazis actually liked the British, who they never really wanted to fight at all. They wanted the Brits to be allies.
French Aryanity (?) had been corrupted by mixing with inferior races, and America had blacks and Jews all over the place. So they despised both groups.