benefits can be cut as soon as you refuse a job
....
you refuse a sex worker position?
Imo this would be a very clear cut case of human trafficking, carried out by the state. Meaning if cases like this happens, which is inevitable, no justice would ever be given, and it wouldn't even be recognized as human trafficking.
What your union HAS to do is, lobby for a law, that exempts every kind of sex working jobs from this fucked up rule.
As for if the rules improve the material conditions of sex workers.... idfk I am no sex worker, but the sex workers and orgs surrounding that field will know. HOWEVER your concern is incredibly valid. The sex work industry shouldn't be legitimized. That is one of the worst thing white feminism has done imo. So it is important to also lobby for laws like.... making it illegal to make advertisement for sex work. Though this might criminalize the workers in some case, which is the thing they always tell us not to do.
Also destroying sex work lobby is also very important, because the lobby will only be beneficial for the most disgusting capitalists.