I’m more concerned about the crack, coke, meth, heroin, pot, krokodil, PCP, etc. dealer on the street corner as a source of blighting areas. Depending on how advanced the drug distribution folks are, there’s usually a side order of the sex trade along with it.
I’d say that strip clubs also probably outweigh “adult” bookstores in community blight. It’s amazing the number of assaults, sex assaults, aggravated assaults, homicides, etc. a couple of those things can generate.
Not saying that “adult” stores are good things, but if the area has other issues going on, those other issues should probably be addressed first.