Many people like to make observations along these lines, but as other people have been pointing out since at least the 2000 elections, “Blue States” and “Red States” are kind of a myth. I personally live in a Deep South state which went for Biden; but more than that, there are maps like this one:
There are “Blue” patches, and sort of long blobby “Blue” strings, and a few large contiguous areas of “Blue” (like New England–outside Maine, anyway). But that’s all in a huge sea of “Red” areas, and not just in the “Red States”–look at New York State! And look at that big “Blue” patch in Mississippi!
Trying to divide the country up along partisan lines is even more hopeless than it was trying to divide it up along “Free State” versus “Slave State” lines.