The correct word would have been puberty blockers (which presumably are also hormones).

Most people who believe they are trans actually grow out of it. Puberty blockers (and also testosterone) have severe side effects (or main effects). Therefore more harm is done by overprescribing them.

There is not even scientific evidence yet that trans people actually exist (as in somebody born in the wrong body somehow).

"Ah it is said" - yeah in the same way that "it is said" that withholding puberty blockers causes harm and whatever else you claim.