For hard evidence of this, see Russia's use of deepfakes a few months ago to impersonate Zelensky and attempt to make Ukraine think their leader was surrendering.
The deep fake was technically advanced but also laughably bad.
What would be an interesting and difficult question is whether this state of things can largely be attributed to the AI community's commitment to making advances in AI open to public knowledge and use, or if there is some stronger factor at work.
Basically, every time we formed an investor pool after a while one of them would "suddenly realize" actor replacement applied to porn and then he'd fixate on the idea. He'd talk the other angels into the idea and then they'd insist the company pursue porn. We'd explain the non-porn higher valued applications, and the danger of porn psychologically tainting the public perception of the technology and the creators themselves. Plus, we had VFX Oscar winners in the company, why the hell would they do porn?