+1 - this survey is measuring existing demographics, not suitability (although if there are issues there we should definitely flag+fix them). I would expect the numbers for users signing up for Lemmy to be more similar than different.
What if we pooled a little bit of money and bought targeted ads? If 20 or 100 signups would be meaningful those numbers aren’t so expensive to buy and would then give us much more direct signal on whether trans men are bouncing off the community.