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The problem with your map as the red area is bigger than the blue, the dems have the blue where the most people are and the GOP has the red where the fewest people are.
If the USA voted by the acre, the GOP might win, but the USA votes by one eligible voter is
one vote.
As for my point about the former democratic solid South, your maps show long and continuous stripes of blue with frequent big blobs of blue.
Nor is the Irish Scott map a good predictor of overall political makeup, since red states outnumber blue states, it does not explain why a basic 3/5 of the Senate races went democratic in 2008, and the House democratic majority is almost as large.