In case you had not noticed, even CHRs and Hot ACs in places like Great Falls and Fargo are much more rhythmic and less rock-leaning than ever. Tastes in the whole country have changed over the last decade or so.
And responding to the major partisan groups in any market is not anti-anything. It's just smart programming to appeal to the broadest group possible, and in most markets the different sub-sets of rock can be among the smaller groups.
Besides the fact that your percentage is off, that's nothing new. In fact, you are making the same kind of statement that was often made in the racially-charged era of the late 60's when every other songs was Motown or a Motown wannabee. It's simply taste... and right now, there is lots of very good rhythmic music that has mass appeal.
Liking rhythmic music is not an ethnic issue... it is simply the reality of what kind of music is most appealing today.
There are few first and second generation Italians in New York today. But when there were, we had Fortune Pope's WHOM and WOV programming all or mostly all Italian... WOV even had a "live" studio in Rome!
I did not say that. I said that the market is 25% Hispanic, and it is natural to assume that a proportional number of stations would program to Hispanics either in Spanish or in English with music that has proven Hispanic appeal.
In no way are 40% of the stations in the NYC MSA in Spanish.
Station owners are aware that only about half of all Hispanics are Spanish dominant. That's why there are only 3 ESB FM signals in Spanish and not more.
Like all nationalities (you are confusing "nationality" with "ethnicity") that migrated in large numbers to any place in the US, it takes a couple of generations for interest in "home country" language stations to wane. First generation immigrants in their majority do not become truly bilingual (able to think in both English and the birth tongue) ever; becoming bilingual after reaching adulthood is a mean task. So such people prefer stations that speak their "comfort language" and play the music they grew up on.
But those folks' kids will generally be bilingual, and the grandkids will have moved almost entirely away from the "other" language. In NYC, that's what has happened with the Puerto Rican community... the Spanish dominants are mostly in their 50s and beyond, and the kids and grandkids are native New Yorkers and speak accordingly. Since there has been little Puerto Rican migration to the Northeast since the late 60's, there is no inflow of Spanish dominant Boricuas, either.