There are definitely social, psychological and neurological factors involved, and none should be discounted. It's just that the social factor is much harder to

There are definitely social, psychological and neurological factors involved, and none should be discounted. It's just that the social factor is much harder to control when our society is so hostile to gender-nonconformity. And that explicitly includes internalized transphobia. I would not be surprised in the slightest if social rejection accounts for most of the remaining difference to cis controls for transgender suicidality.