A few points here:
1) there are international players who are entertaining. Dirk,
Ginobili, Nash, and Kirilenko come to mind. They're not all just
3 point shooters (although we certainly need as many versatile
white players as possible).
2) I agree with the other guys, dunks are overrated. I admit
that seeing a black player dunk holds no interest to me
partly because he's black. Jumping over somebody,
jumping from the free throw line, "posterizing" somebody, etc,
can be cool, but most of them aren't that great regardless of
who's doing it.
3) they won't admit it, but the reason why people don't watch
WNBA is because they're women. Their bodies just aren't
suited to playing basketball.
4) ultimately, people want their team to win. Being an effective
team or player is the most exciting, entertaining thing in sports-
not dunks, endzone celebrations, trash talking, saying stupid
things to reporters, fights, and all the other crap that gets
touted as "entertainment" these days. Winning is entertaining.