No, that's not correct. The exact number is hard to establish, of course, but consider these clusters of printers who are still active today:
* Commercial fine-art printers dedicated to chromogenic prints; partly working for fine arts photographers, and party for the heritage sector (e.g. museums).
* 'Hipster' print finishers who have revitalized old optical minilabs to do smaller prints from film brought in by customers.
* Artists who use chromogenic print as a creative medium (i.e. people making a living, or trying to, with their art). Depending on the definition of 'art' you use, this could include an apparently growing number of young fashion photographers who use optical RA4 prints as a distinguishing element of their work.
* Color darkroom facilities used in an educational setting.
* Color community darkrooms used by amateur printers.
* Solitary amateur color printers.
It's very difficult to attach numbers to these categories, but I was surprised when I started to reach out for fellow color printers and I actually encountered others who are active in this area and often passionate about it. Some of them are in their late sixties, others in their early twenties.
You might want to check this out, too:
https://www.photrio.com/forum/threads/list-of-color-darkroom-facilities.202221
This list has only just begun, so it's growing, still, and only covers a fraction of what's actually happening today. These are all color darkroom facilities in collective use (educational, commercial, artistic/community) so the individual amateur darkrooms are not even represented, nor are the printers who use shared facilities for lack of their own workspace.