I'd like to mention those few divisions that were on the front, around 23 of them nearly all got shattered

Hollywood and historical accuracy…remember the Stuka Siren? That sound made by the propellers on the landing gear (if even mounted on them) of the Ju87 when it reached a certain speed?
The sound you most likely know as being played to death for every single aircraft because hey that's how aircraft work!

During Dunkirk in France?
Yeah Primarily white British soldiers. best case scenario the numbers would lie around 6000 in rear echelon never actually facing combat. No Numbers large enough to justify it alone. Your best argument would be a few North Africans or Indians on some of the ships