Paris Green is a man in prison for murder. Women prisoners should not, ever and under any circumstances, be put in a position where a violent heterosexual man can corner them. There's no way anyone could truly consent to sex in those circumstances, and women prisoners are particularly vulnerable. As a cohort, women prisoners are highly likely to have been the victim of sexual and violent crime (which is committed almost exclusively by men) and to have issues of trust, boundaries, etc.
Exposing them to this man is appalling, a mass of human rights abuses. As for him being trans, there is absolutely nothing transgender about a violent man who uses his penis to have sex with women.