It is entirely clear that it can be the case, as proven by the existence of people "detransitioning".
It is also entirely clear that there have been parents (usually mothers) who wanted to have a trans child because it was cool.
So-called "detransitions" represent way less than 1% of the trans population. In particular, the proportion of people regretting their transitions is much smaller than that of mothers regretting having their kids. They receive massively inflated media attention because their stories are picked up and turned into propaganda in service of bigoted narratives.
There is a logical flaw in suggesting that something that occurs with a small percentage of a population such as “detransitioning” implies anything about every member of a population.
Child abuse exists, but doesn’t imply anything about every parent.