1. Your stating that laws against pornography and prostitution are unconstitutional does not make it so.
Your claim that I've said all laws "against pornography and prostitution are unconstitutional" is ludicrous. States & localities can reasonably regulate the public aspects of such activities, while the criminal aspects of such behaviors have long been covered by our common law.
2. Never been to Utah. But I know that they cannot ban adult bookstores if they so desired.
Wanna bet? The moral majority rules in Utah.
The State is ringed by porn shops just across every adjoining state line. There are none in the State.
Seems to me a similar thing would happen if we turned the drug legalization decision over to the states and a state wished to continue the ban.
I suppose you'd just giggle and say, "Too bad", huh?
Sorry you are flat wrong about 'porn' in Utah.
In fact the defense of the case of a Utah county video store involved searching the porn viewing records of america zip code by zip code. Utah has one of the highest (along with the bible belt) porn viewing rates on DirecTV. Of course that's just a reflection of how embarased they are, in LA they just buy it, in Georgia/Utah they order it on the dish so no one knows.
References:
http://www.mormonstoday.com/001027/B4CorpPorn01.shtml
Many more available by Googling 'Utah county pornography Movie Buffs'. Take your pick of viewpoints.