In the interest of clarity, I'm pasting the summary Result and full Conclusion from your cited report
Shizuku:
"Results
Transgender children reported depression and self-worth that did not differ from their matched-control or sibling peers (p = .311), and they reported marginally higher anxiety (p = .076). Compared with national averages, transgender children showed typical rates of depression (p = .290) and marginally higher rates of anxiety (p = .096). Parents similarly reported that their transgender children experienced more anxiety than children in the control groups (p = .002) and rated their transgender children as having equivalent levels of depression (p = .728).
Conclusion
These findings are in striking contrast to previous work with gender-nonconforming children who had not socially transitioned, which found very high rates of depression and anxiety. These findings lessen concerns from previous work that parents of socially transitioned children could be systematically underreporting mental health problems."
I understand the Conclusion to be saying there is a "striking contrast to previous work" which had found very high rates of depression and anxiety, whereas in this report "Transgender children reported depression and self-worth that did not differ from their matched-control or sibling peers".
So previous work suggested not socially transitioned children experienced high levels of depression and anxiety, but this report finds that there's no actual difference in depression against their peers.
So whether a child socially transitions or not makes no difference to their levels of depression.
But Shizuku says
"The report finds that affirming a trans child's gender identity with social transition has beneficial effects on their mental health"
Are we reading the same summary? Perhaps the full report does contain information contrary to their summary which supports your claim?
It is unethical to join a support thread with false information to what, guilt? parents into acting against their parental instincts and against what they believe is right for their child?
This is not a discussion sub forum, it is a support sub forum. The OP asked specifically for help, not a debate. On that note, this is my last interaction with that particular poster.