Jim, and similar activist types, have a problem because they are using 'trans conversion therapy' to bring to mind the worst of the worst when it comes to gay conversion therapy, things like kids being forced to go to religious boarding schools against their will or having to take a cocktail of chemicals to suppress their natural urges, but when you actually look at what the hot button topics are with what they call trans conversion therapy, half the time its extremely reasonable stuff like parents not really being convinced that their child actually is the opposite sex and that they shouldn't feel under pressure to affirm their sexual identity or go into the extreme medical intervention route for their kids to 'achieve' their gender goals. This gets extra murky since a lot of kids will end up detransitioning or losing interest in the whole trans identity which ironically often ends up just being a preamble for them turning out to be gay, and some therapists take the position that its better to wait and see how things turn out before carting them off to get their secondary sexual characteristics surgically removed. If a parent refuses to automatically indulge everything that a child says about his or her gender identity, especially if the reasoning makes no sense. or they have a history of mental illnesses that might make them vulnerable to this kind of obsessive thinking and furthermore refuses to consent to often extremely expensive and destructive medical procedures that are by every possible metric completely unnecessary if you aren't talking about trans people threatening to kill themselves if they don't get them, that's 'Conversion therapy' in the minds of a lot of trans activists and frequently this kind of stuff is snowballed into wider conversion therapy legislation that targets the much more obviously horrible stuff.
It also creates a chilling effect with therapists, a lot of the time the fear of being labelled as a conversion therapist or even breaking the law depending on how trans conversion therapy is defined means that a lot of therapists take the path of least resistance and go for a pure affirmation model, even if they may know better and think some caution should be applied and that a child shouldn't be completely indulged in whatever wacky thing they are saying about their identity. This can have destructive outcomes, as the Keira Bell case shows, where down the line some kids who get some really radical medical intervention can regret the damage that's been done to their body and hold their therapists and doctors accountable for not advising caution instead of just mindlessly affirming everything. Its gotten to the point that in Sweden one of their highest profile medical institutes, which was previously extremely pro-trans, seems to be shifting towards a much more cautious stance that I'm sure that somebody like Jim would decry as Conversion therapy.
Curiously this hasn't been talked about much but I think it might indicate a low key shift in the attitudes of medical professionals.
Oh also, I just have to mention I love the sick irony of Jim and people like him screaming about conversion therapy constantly, when one of the worst things about gay conversion therapy is the use of unnecessary and invasive drugs that can fuck up your bodies natural functions and ruin your life in chase of a Sisyphean goal of changing one's true nature, and this is coming from the same people who consider the fact that kids may potentially not be given puberty blockers or opposite sex hormones to try and become an awkward facsimile of your desired sex to be part of trans conversion therapy!