i only read a comment or two on youtube, but this idea of 'imported racism' from white Americans, was happening all over during ww2. If I recall correctly, the Irish were being subjected to it, but not all were affected as seen through the eyes of black sailors in a film stationed in Ireland (they were dancing and drinking with the natives like anyone else - color didnt mean shit..winning the war was the important matter). Forgot the name of it tho.
Bottom line is that our military was racist, and the white marines, soldiers, and sailors that were being shipped to those countries, brought that shit to their lands. Pretty pathetic. The racism was so horrible back then..this is why there are so many efforts to curtail this shit before it starts with these politicians and media dogs.