The first hypothesis doesn’t subsume the second. The second hypothesis is that the increased confidence comes from increased psychological well-being due to no longer inhabiting a body you don’t identify with. If that was the sole (or primary) reason for increased confidence among post-transition trans men, then we should expect the effect to be symmetric, and for post-transition trans women to exhibit increased confidence too. The fact that they don’t suggests that we should look for a different explanation, one that distinguishes between trans men and women. The testosterone hypothesis is one plausible possibility. Institutional sexism is another.
If there are differential perceived benefits in social prestige/power from transitioning based on direction, this is consistent with there being only one factor (sexism) conditional on direction but also consistent with there being unconditional benefits plus the pushmi-pullu effect of swapping testosterone & other androgens for estrogen etc in which the net effect for the mtf is indeterminate. I am willing to take their word on transitioning being good for them, which accounts for the first factor, I prefer experimentally demonstrated effects from powerful mind-altering hormones to unprovable spooks like institutional sexism, and so the hormone model seems to me to fit much better.
The first hypothesis doesn’t subsume the second. The second hypothesis is that the increased confidence comes from increased psychological well-being due to no longer inhabiting a body you don’t identify with. If that was the sole (or primary) reason for increased confidence among post-transition trans men, then we should expect the effect to be symmetric, and for post-transition trans women to exhibit increased confidence too. The fact that they don’t suggests that we should look for a different explanation, one that distinguishes between trans men and women. The testosterone hypothesis is one plausible possibility. Institutional sexism is another.
If there are differential perceived benefits in social prestige/power from transitioning based on direction, this is consistent with there being only one factor (sexism) conditional on direction but also consistent with there being unconditional benefits plus the pushmi-pullu effect of swapping testosterone & other androgens for estrogen etc in which the net effect for the mtf is indeterminate. I am willing to take their word on transitioning being good for them, which accounts for the first factor, I prefer experimentally demonstrated effects from powerful mind-altering hormones to unprovable spooks like institutional sexism, and so the hormone model seems to me to fit much better.