Counterpoint: the internet is full of people who want to teach. The first school of YouTube is overflowing with educational content on everything from merge sort to patching dry-wall. A large portion of my social circle hold teaching/mentorship as a career goal. I don't think this is pedantic. When I look around, I see a surplus of people that want to learn and want to teach.
What I don't see is people storming the gates for a horribly broken system that robs many humans of their best years while inflicting lifelong trauma. A position that is horribly underpaid relative to the demands of the job (so you aren't doing it for money) and isn't allowed to meaningfully improve things (so you aren't doing it to "make a difference" unless you think putting on a smile is going to substantially change the outcome, which it sometimes does.)
I don't necessarily think this is a bad thing. If you can provide a service at any standard of quality, list jobs at any standard of quality and pay, and the demand never dries up; there really is no incentive to fix things. At some point the education system in its current form needs to collapse.