I'm slightly annoyed that the red book isn't depicted above the blue, and the picture frame is also not in the side view.

The screws don't even reach through the drywall?

It's possible to cut a groove in a board so you can drive a screw outwards from it, but that's pretty difficult and also the wrong approach for shelves which should be attached to the wall by supports underneath instead to distribute forces better.

This reminded me of the time when I was a kid and woke up at like 3 am to a toy from the shelf that was over my bed landing on me. Followed shortly by a couple other items. I then had to duck and cover and tank it as the rest of the shelf landed on me because my cat was right next to me sleeping like the dead and I didn't want it to hit her.

It's one of those things that makes me question if there's a god or fate or whatever because if that thing had just whacked me in the head while I was asleep it would have really sucked.

In this case, the bookshelf is stronger than that poor screw. When attaching things, especially things with variable load and the potential for a lot of touching, you absolutely need to either drill into one or more studs (based on length of said item), or use the appropriately-rated drywall anchor (they are rated based on weight load). Both the anchor and screw must pierce the drywall, and the screw must be tightened so that it collapses the anchor back into the drywall. That’s what gives it the ability to hold up.

The stud is getting screwed.

All 3 are true...

Shelf angle brackets would beat both the shelf and the screw.

Is this AI?