Hdrdr911 & SammyM, thank you for these posts. There is no "nudity required" section of these public beaches. One would think that common sense and courtesy - especially regarding photography - would prevail; but one would be wrong.
Two points that stood out to me from these posts: Neither "side" should impose their values on the other - if you don't want to see nudity, don't go where you know you'll see it and then complain; there are other choices. And CO will need the next generation to fill their rooms someday. Those of us of a certain generation realize this, and welcome curious visitors.