Not true. I'm in a Blue State (IL) and 'like' the Cowboys, and have for years and years - after Da Bears of course.
The Cowboys were years ahead of every other team in how they scouted, rated and drafted players -- Computerization (Tex Schram was a genius in that respect). While teams like 'Da Bears' were stuck in the 1940's with that stoo-pid 'BLESTO'; Bears, Lions, Eagles, Steelers scouting combine.
And Da Coach did play for them, so that helps too.
And afterwards was on the Cowboys coaching staff for years. He was great.