In case you haven't been following it nor reading Debbie Schlussel's web site, the WNBA has a strong lesbian stench to it. So the finding that its followers are strongly 'Rat is hardly surprising.
I personally wouldn’t speak—or I think think—so derogatorily of such a subset of Americans. (And no, I’m not a lesbian!)
But they I think lesbians are as strongly represented on the LPGA Tour, which is why I find the divergence of political leanings so interesting. As someone else above mentioned, the LPGA is probably stronger in more rural and more conservative parts of the country and the WNBA is I expect stronger in more urban and in the more liberal Northeastern parts of the country.
But because the LPGA has such a lesbian component and is so conservative is part of why I wish some Freepers would be more tolerant thereof.