Race or phenotypes have nothing to do with it. I think it's the education level of the general population, and limitation of corporate money influencing politics and media. Vermont does not allow billboards. Just one example.
This ban also carries over to the thousands of annoying small banners that sit on thin metal frames that line all our roads in other states before elections. Usually they are not removed until weeks after the election. Vermont got it right here and is a great example for other states to follow.
The voters don't need propaganda noise. What they need are the answers to how each politician will deal with important issues that affect the daily life of the majority of constituents. The educated Vermont voter is skeptical about campaign promises. Rather, they look at the seasoned track record of the politician's commitment to implementations of stated policys. When there is less campaign propaganda noise, it is easier for a seasoned independent politician like Bernie Sanders to flourish. While propaganda and campaign advertising restrictions are important, this is tied to the amount of campaign funding and money in politics in general which must be capped.
The shift from red to blue in 1992 can be linked directly to the first Gulf war. Vermont and New Hampshire politics has always been of restraint from getting involved overseas. The skeptical Vermont voter saw through the deceptions put out by the republican party of the US need to intervene. Unlike the rest of the red states, the Vermont voter was not fooled.