>>40746601 (OP)
This is actually something I've been thinking varies among trans people. Some seem to have high nature and low nurture, like the ones who transition at 6. Others have low nature and high nurture, the ones who transition in their 30s or older. Some have both high, which results in the twisted up disasters you see on here thanks to the internal war they're caught between. And some have both low and just do whatever they feel like, like hrt femboys and transmaxxers. The ones who aren't crypto trannies, at least.
Cis people are, of course, impossible to measure for the reasons stated.