Prostitution is not illegal (though some related activities are).
"People are imprisoned or prosecuted for prostitution in the UK for the following main reasons:
Brothel-Keeping: Under UK law, any premises used by more than one person for sex work is considered a brothel. Because working alone can be highly dangerous, sex workers often share apartments or spaces for safety. However, doing so is illegal and can lead to prosecution. 1, 2, 3, 4]
Soliciting and Kerb-Crawling: It is illegal to loiter or solicit sex in a public street or in a vehicle (kerb-crawling). 1, 2]
Pimping and Trafficking: The highest penalties—up to seven years in prison—are reserved for third-party exploiters, pimps, and those engaged in human trafficking or forcing people into prostitution. 1, 2, 3, 4, 5]
Failure to Pay Fines: Many individuals, particularly street-based workers, accumulate repeated fines for soliciting. When these fines go unpaid, or they breach community orders or Anti-Social Behaviour Orders (ASBOs), they can face prison sentences. 1, 2]"
Your point was that it's illegitimate for women to be concerned about this (a 'moral panic').
Why should women not be concerned about incarceration rates?
Again the point being made is the impact is far lower than being asserted.
Why must they use your preferred numbers, draw your preferred (lack of) conclusions?
Why should they pay attention to the actual risks & not the ginned up one's? They can do what they want but its notable that its only the UK where this has become an issue. Most other western countries in Scandinavia, Europe, North America & Australia & Asian countries don't consider the risk worth changing the structure of society over.
Perhaps they take a different approach to scapegoating crime problems on minorities like the UK does by understanding them as they are being a symptom of poverty caused by bad governance.