That Cuttie Wren link with the Peasants Revolt is I believe extremely suspect. We've had at least one thread about it here, and there seems no real reason to believe there is any connection.

Still it's a good song, and the story adds colouyr to it when it's been sung. In fact by now the story is part of our folklore, so we should cherish it.

Trying to read long past history in terms of the left-right political sprectrum is also pretty suspect at times. You can't really neatly allocate disputes about religion and national identity in that kind of way, and you get all kind of odd combinations and mixtures. A lot of Black Americans and Native Americans fought against the American Revolution, for example. At various people struggling for workers rights have been viciously opposed to immigrants of the wrong racial make-up, "coolies" and suchlike, and this gets reflected in the songs sometimes. The same goes even more extensivekly for sexist attitudes.

People make up songs about what is important to them and to the people to whom and with whom they sing. Songs normally aren't about "politics" as such most times - what they do tend to deal with in this way are the hardships associated with struggles of one sort or another. The political labels and connections are pretty secondary. Most of those mill-owners would probably have been Liberals.