Many find sex work morally repugnant, but similar assessments could be made of other forms of work, such as the nuclear arms industry.
Decriminalization is no panacea for fixing the worst aspects of sex work, but it is a step in the right direction. If prostitution were not an underground activity it would allow the government to much more effectively address the serious problems of forced prostitution and juvenile prostitution and the other abuses which are part of an industry that operates completely in the shadows
Prostitution, as a crime its an enormous misuse of scarce police resources where we have women and children in danger from violent serial sex criminals and killers, that is what we should be concentrating on, not how many arrests we can make for prostitution.