Many states name a "Mr. Basketball" each year for the best player in that particular state. Here is a list of Utah Mr. Basketball over the years:
http://en.wikipedia.org/wiki/Utah_Mr._Basketball
While these are all great players, notice in the far right hand column how many were drafted/played in the NBA. These are the very best players in the state year by year.
Now here is California's list:
http://en.wikipedia.org/wiki/California_Mr._Basketball
Again, notice in the far right hand column how many were drafted/played in the NBA.
Even at BYU, many of our most elite players came from states other than UT. Jimmer - NY. Ainge - OR. Michael Smith - CA.
Other than that, you are entitled to your opinion, but this is mine.