To be fair, a large proportion of contributors have been saying that ANY prostitution is condoning and 'propping up' the evil of the worst aspects of the trade, so I don't think she is being unduly over the top. You must logically therefore be critical of a woman who claims to chose prostitution, because you say her choice provides validation for the suffering of many others.
So her other example I also think is worth consideration. As so many women are beaten and killed in relationships by men then isn't any woman who enters into a relationship an apologist for the whole thing?
Of course I don't believe that but it parallels the argument that sex therapist = condones trafficking and rape, which I think is just wrong.
My knowledge of feminist history is shakey but wasn't this precisely Andrea Dworkins view? All men are rapists, all men are the enemy?