Hmm, in some ways though I think the pledge he has signed could be even MORE dangerous than the other one.
The biggest bit that jumps out at me is the ban on "conversion therapy" - which we know, to trans extremists, includes any therapy aimed at investigating possible causes of children's dysphoria, and whether this can be resolved in other ways (or may resolve itself naturally by the end of puberty, as happens in the vast majority of cases), rather than declaring them trans and going full-steam-ahead to puberty blockers and the medical pathway. If this was enacted it would make it even harder to stop children being pushed down the path to eventual hormones, sterility and surgery.
Combine that with the education aspects, the requirement to consult LGBT+ Labour on basically everything, etc, and this is really quite sinister.