In theory, under prohibitionism prostitutes are arrested, fined, jailed. Under abolitionism, which permits the selling of sex, a farrago of laws, by-laws and regulations give police a myriad of pretexts for harrying sex workers. Regulationism, which wants to assuage social conflict by legalizing some sex-work forms, constructs non-regulated forms as illegal (and rarely grants labor rights to workers). But eccentricities abound everywhere, making a mockery of these theoretical laws. Even Japan’s wide-open, permissive sex industry prohibits “prostitution” defined as coital sex. And in recent years a hybrid law has arisen that makes paying for sex illegal while selling is permitted. Yes, it’s illogical. But the contradiction is not pointless; it is there because the goal of the law is to make prostitution disappear by debilitating the market through absurd ignorance of how sex businesses work.
A good analysis of how fighting sex work criminalization is very complicated and not simply the binary of legalization vs. decriminalization.