No, sorry, that's just not true.
D&D is not anywhere near that simple. You're describing RPGs, specifically DM-centric ones.
D&D is an RPG, but it is not anywhere near as simple as you're suggesting, and no, D&D does not let that be "all there is to it".
D&D has specific rules and guidelines, huge amounts of them. The whole 6-8 encounters/day and the difficulty moderation of the encounters alone places 50-100x the DM work burden that a lot of RPGs do (I mean that literally, to be clear). Then D&D is entirely DM-centric as well, with no player narration and limited player creativity allowed, RAW/RAI, which again puts vastly more weight on the DM.
And you say "Oh well people are unnecessarily panicking" and I say, no they're right to panic, D&D has too many goddamn rules and they're not good rules.
Re: encouraging people to read, ummmm, that's an unconventional take. Most educators I know would suggest neither comics nor Tolstoy were a particularly great way to get people reading. So that's just something you've made up on the spot. If you want D&D to be less like Tolstoy though, D&D needs to be redesigned. Moving away from levels would be huge if you really wanted to make D&D more accessible. Levels are the main thing that makes D&D hard to run, that and the fact that 5E is relatively tightly balanced.
Do you ever get tired of trashing a game that millions of people enjoy playing? We should be panicking because ... why now? Because it's the most successful version of D&D ever? Because we've had nearly a decade of double digit growth?
Nothing is perfect and of course the game can be improved. I hope they do. But the house is hardly on fire.
