I don't think Azizi said anywhere that the "yella gal" songs should not be sung; what I take from her comments is the notion that if you are going to sing them, you should at least be aware of their implications - and I think she's right. I sing some of these songs and enjoy them myself, but to deny that they reflect unfortunate social attitudes about race is ridiculous.

Yes, the songs in which they are mentioned often express admiration and fondness for the "yella gals"; there are also songs that express admiration and fondness for dogs and horses ...