You are absolutely right. Failing to make the post season in consecutive years EVER is a pretty damning stat for the White Sox. If you are already the "underdog" team in a 2-team market, you're not going to build up a huge following when you make the playoffs typically once every 5 years or so. It's pathetic that we're in the 18th season of the 3-division, 1 wild card arrangement and the Sox have only been able to scatter a few playoff appearances.
Except the Sox were outdrawn this season by teams like Colorado, Pittsburgh, San Diego and Toronto. Is this "consecutive/multiple-year" theory exclusive to the South Side of Chicago?