My point, you mong, is that so many industries "predicted" to get supplanted by technology STILL haven't been, and never will be. If you pulled your head out of your ass and saw this you'd be more realistic in your "hot takes".
It's way cheaper to build your own PC. Has NEVER supplanted the ready-to-purchase store models. Human fucking nature. 3D printing is messy as fuck, and smelly too. Not everyone wants to deal with it. Not to mention you STILL have to deal with painting and fragility. 3D printed toys will never be appropriate for kids, it will be a collector-driven market. Paint rub will be a constant issue.
3D printing toys is MY jam. It's what I plan on devoting 99% of my free (non-family) time in retirement to. And I can already tell you I know in my heart that even a good solid 20 years will never get me close to making everything I want to make. And you think this is going to supplant the toy market? You. Are. Delusional. And you think people are going to stop buying whats made because everyone is going to say "fuck it, I'll make my own"?
Again, just like Xeroxing or resin casting, it's another tool for enthusiasts to work with, not an industry-killer. I have my own design studio, and can tell you its a lot of fucking work. When it comes to gift-giving, it's far easier to buy a store-made toy to gift rather than customize from scratch.