Legalized prostitution is liberal, though. Worker’s rights, protection, medical care… in every country with legalized prostitution, prostitutes have a better deal.

Note that I’m not saying that legalized prostitution is always good - human trafficking is still an issue. I’m just saying it’s a better environment than places where prostitution is illegal.

There may be liberals who see prostitution as exploitation, but more broadly, legalized prostitution is more supported by liberals.