HRT ie Hormone replacement therapy makes trans people sterile. Also I previously that there have not been credible reports what you have cited are not credible. You yourself acknowledge in your previous comment that what you referenced was based on rumours. Im also willing to bet that those rumours were mostly spread by cis people as there is no credible evidence of these people you mentioned being secretly cis.

No cis person is going to go through the extensive often strenuous process to get on hormones. Which cause sterility as well as physical changes to their body just so that they can rape/abuse women. That is simply not the case. Also whether the crime was committed before or after transition doesn’t matter because ultimately transitioning as a trans person is about identity, not action.

The action is bad but is ultimately unrelated to said persons identity. A cereal killer can be gay but that doesn’t mean that their gayness is contingent or even because of their cereal killer actions. It’s simply part of their identity a coincidence essentially.