What you'll find in many of the people who sign these petitions is that they've become tired of large population centers dictating everything in the state. I lived in downstate Illinois for almost all of my adult life. There are 2 Illinois, one is downstate and the other is Chicago. State politics there are ruled by Chicago. Pennsylvania has Philadelphia as their example. It is stated that all you need to do to win Pennsylvania is carry the 4 counties around Philly.
These are interesting times and the divisions need to be addressed.