Basically, this.
There is nothing wrong with being gay. Even if you lived in a country where being gay was illegal and so it would be much easier for you if you could be straight, there is no form of therapy which can actually make you straight. So at best, gay conversion therapy is a pointless exercise, and at worst, it is incredibly traumatic, as people who have been subjected to it can attest to.
But gay people aren't harming their healthy bodies with hormones and surgery. Gay people aren't demanding access to single sex spaces and sports for the opposite sex. All that is really needed for gay people to live full and happy lives in society is for everyone to accept that some people have sexual relationships with members of their own sex and that this is none of anyone else's business.
Being trans is problematic wherever you live, even if you're in a country like Canada where everything is festooned with the trans flag and everyone has pronouns in their email signature. Even if you live in a country where everyone is willing to pretend to their last dying breath that you really are the opposite sex, you will never be the opposite sex. There are legitimate arguments against you using single sex spaces for the opposite sex and competing in sports for the opposite sex. There are legitimate arguments against you getting the kind of medical interventions you may believe you need. If you are prescribed hormones you will be on them for life and you may suffer devastating consequences such as early onset osteoporosis or the inability to ever orgasm. And that's before we even get on to surgery, which causes even more devastating and irreversible consequences. If you detransition after even a short time on hormones, your body will permanently bear the marks of this treatment, in the form of an altered voice, hair where it shouldn't be, a lack of hair where it should be, different fat distribution, an enlarged clitoris. You will most likely never "pass" as the opposite sex. Your dating pool will be drastically reduced, because as much as people might pretend they are open minded, the vast majority of them have a clear preference for a partner who both is and presents as a particular biological sex. Even people who identify as "pansexual" are unlikely to be interested in a serious relationship if they want children and you are sterile as a result of your treatment.
With all that in mind, who on earth would choose to transition unless it really were the only option to make your life bearable?
So it makes sense that people claiming to have a transgender identity should be having extensive therapy to rule out literally every other possible cause of their dysphoria and every other possible solution before the idea of transitioning is even entertained.
That's not happening now, and it certainly won't happen if it is banned.