But why would a person keep company with anyone who is dehumanizing him or her if he or she has a choice? They fault is all their own for keeping company with such a person.
For the same reasons that battered men and battered women stay with their abusive spouses. Gaslighting, fraud, and belittling are ways that a person can be henpecked into nothing. It can happen violently in an acute manner, or it can happen over weeks at a time. Economic situations, where one partner can feel at the mercy financially, educationally, in employment, in housing, or in transportation...abuse of power can be wielded that can result in the systemic dehumanization of another.
Cosby, remember, fooled everybody into thinking he was a good guy. This has been going on for years and years, and yet now people are becoming aware. If WE didn't see it for 30 years, in spite of his record, how could any woman be faulted for trusting his motives?
Again, please stop using the word "fault." People make bad judgements all the time. Justice is not found in seeking how the victim brought it on himself or herself. That's a social custom found in rape culture.