Well said Wolfgang, I salute you for that insightful post. I grew up singing kids songs about German soldiers crossing the Rhine, and one about doing rude things to one with a bayonet. If I remember them now it is with a nostalgia for the child that I was, and not for the songs that I and others sang, Remember in those days we also used to sing a silly patter song called the Darkie Sunday School, which Adam MacNaughtan still sings, but now it's the Glasgow Sunday School.
Language is insidious, and while we scoff at the PC brigade for their 'Language Politics' in declaring some words non-PC, and sometimes they do overdo it. Still it is good that these hateful words and expressions disappear from our mouths eventually, and even though it may be stopped only by lack of use rather than considered thought it's still better that they go.
Again thanks for the thought provoking post.
Giok