I think we need to be careful to get all the facts here.
The Tavistock isn't "the gender clinic".
The Tavistock and Portman is the NHS trust which oversees GIDS (the gender clinic). Its "our services" page mentions over 30 services, of which GIDS is just one.
Others services are for couples, young people, children needing autism assessment, fostered and adopted children, asylum seekers, drug users and alcoholics, people with psychosis, people with personality disorders, young people suffering mental health issues etc etc.
So, while it's shocking and extremely concerning that a Tavistock lead psychologist is a paedophile, it only begs the question "how much did he have to do with the gender clinic" - and I don't think we know that yet, do we?