It does go two ways...
True...for many southerners, there is much less passion for basketball than football.
And for many northeasterners, there seems to be more passion for basketball.
It's just a regional difference...neither region is necessarily dismissing the interest of the other region, just noting that it is not the same in their region. And thus, one can expect different conference policy decisions and interests.
Different cultural events influenced sports differently based on locale.
New York's public BB courts are famous as the breeding ground for Dr. J and scores of others...but, in my dad's day NY city basketball thrived...not with black players, but with Jewish players.
In the 30's, the New York basketball scene was heavily jewish....one might even make the case for the Jewish players being the start of basketball prominence in the northeast....
An interesting read...
Basketball and the Jews | My Jewish Learning