About 4.5 out of 100k troons gets murdered in the us a year, assuming that there's only a million trannies. Compare that to the 5.3 out of 100k of the general population. So it's actually less likely for troons to be murdered then it is for cis people.
(Look at this post for my sources:
https://kiwifarms.net/threads/most-people-are-transphobic.97316/post-9674559)
As for rape and assault I can't find any reliable numbers so I am going to assume that it's a lie until someone links me an actual source.