Songs are a big deal, I believe. They can put us in touch with all kinds of important things in the past and the present.
That doesn't mean they have to be prettied up and so forth to avoid offending people. It means that when we sing them we have to be aware that in some cases their might be people who may be offended, and take that into account. That's just good manners.
"Taking into account" doesn't mean censoring. It means understanding and being ready to explain.