The full text of the American study (of which there isn't much) is here: escholarship.org/uc/item/7c3704zg
Limitations, as acknowledged by the authors:
Our study is limited by relatively small sample sizes of transgender people, which accounts for large confidence intervals and limits our ability to assess victimization subtypes. We also could not investigate victimization at the intersection of gender identity, race and ethnicity, age, marital status, urbanicity, and other characteristics.
Another study by the same author looking at data from 2017 only makes clear what they mean by "relatively small sample sizes" - for the 2017 sample, there were 211,889 victims of crime altogether of which 194 identified as trans.
To conclude from such a small sample size of 0.092% of the total anything with any certainty is next to impossible. Especially since the authors did not seem to have adjusted for age, income and location in either study. (Amongst victims who identified as trans, the 16 to 34 age group was overrepresented, they mostly lived in urban centres and had lower incomes, all of which puts people at higher risk.)
Furthermore, I'm reluctant to accept data from the US in these debates that centre on UK people, because our situations are not comparable. We have legal protections for people who identify as trans that don't exist in the US, which means that their living situations here are frequently much better than in the US. We also have different policing, justice, health and social care systems, which makes another big difference in people's lives. And, as a PP pointed out, we don't have the same gun culture.
So that referenced study is a preliminary look into limited data, that suggests that people who identify as trans in the US may be victimised more often. It might well be true. The study doesn't deliver evidence, but it still could be true. But even if it was, given the vastly different situations here and there, let's stick to UK data.