Well, as to the life coach thing, this is why licensing and regulations are important, public safety. There is no agency regulating them. It's feasible that you have a repeat sex offender working as a "life coach" with sexually assaulted individuals. An extreme example, yes, but there is nothing to stop it. There is no mandated training, testing, etc. In my slightly libertarian leanings, I think people should be able to "life coach" to their heart's content. But, as soon as they call themselves therapists, or purport to be doing some type of therapy, they deserve to have the hammer dropped on them.
As for "conversion" therapy, there is nothing there. The data that we do have strongly suggests it's harmful. Any licensed professional conducting it needs to have their license stripped. They are clearly violating ethical guidelines and aspirations.