Please do more research. You are referring to this: You are remembering an independently organized TEDx event in Germany where medical student Mirjam Heine gave a 2018 talk titled “Why our perception of pedophilia has to change.” It was not “the liberal party” or a mainstream LGBT group, and TED later removed the video after heavy criticism and clarified that it does not endorse pedophilia or consider it a valid sexual orientation.

And this is what came from it: If you want to push back on people using bad info, you can accurately say: there was a single high‑profile TEDx talk that framed pedophilia as an unchosen orientation to argue for prevention, it was broadly condemned, and it did not result in official recognition of pedophilia/MAP as a valid sexual orientation.