To be clear: not accusing either of those above of being an actual rapist! Just asking which would be more likely to inspire this fear in someone who doesn't know them.
[0] https://en.m.wikipedia.org/wiki/ContraPoints#/media/File%3AN...
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Are you just making this up, or do you have some statistics on female on female rape?
Here's an analysis of data from the Ministry of Justice in the UK, demonstrating that trans-identifying males have similar patterns of criminality to other males, including sexual assault: https://fairplayforwomen.com/transgender-male-criminality-se...
There is no proof males who identify as trans (transwomen) are any less likely to commit rape than males who do not identify as trans. The rape risk of being housed with a male is real regardless of how the male identifies with regards to gender. If you have data to the contrary (data indicating that trans identifying males are less likely to commit rape than other males) please share.
On the other hand, it is well known that transwomen are much more often the victims of rape by cismen, if living in men's prisons.
If anything, I would think the biggest problem here is the fate of transmen. I doubt a ciswoman would feel very comfortable sharing a cell with a transman, but a transman also has much higher chances of being abused if sharing a cell with a cisman.