It's people who feel emotional about it; and of course it's people who write songs, and sing songs, and listen to songs. As with other matters involving life and death, such as war and capital punishment, it's never just "a very practical matter that needs practical solutions". We reach rational answers founded on what we believe to be true, and different people will reach different views in regard to all those things.

I agree with MtheGM in distinguishing between two things that can be confused. Attempting to argue for a point of view, or trying to persuade other people to share that point of view, or act in a certain way, is not the same as haranguing people for not being convinced or for not acting.

I think that directly arguing a case is not likely to be the best way of getting that case over, but that is another matter. As for haranguing in almost all situations it is likely to be a waste of energy - as Joe Hill might have put it, "Don't rage, organise".   But I don't think it is right to sneer at someone who might (or might not) have fallen into that trap in face of appalling events which have been largely airbrushed out of history.