Jim here is yet another social comment song that isnot in the folk genre, which disproves your statement about unique nature of folk song, yesJim ,for once admit you are wrong, and that your statment is not true
I am born today, the sun burns its promise in my eyes;
Mama strikes me and I draw a breath and cry.
Above me a cloud softly tumbles through the sky;
I am glad to be alive.

It is my seventh day, I taste the hunger and I cry;
my brother and sister cling to Mama's side.
She squeezes her breast, but it has nothing to provide;
someone weeps, I fall asleep.

It is twenty days today, Mama does not hold me anymore;
I open my mouth but I am too weak to cry.
Above me a bird slowly crawls across the sky;
why is there nothing now to do but die

Harry Chapin - The Shortest Story.
Jim, you have been proved wrong