Because key and cryptotext are literally a few nanometers apart, both in RAM and in the eMMC. Unless you physically take the key away with you, USB dongle style (and I ponder how frequently would the key be actually removed from a device whose primary usecase is staying most of the time online), then it is fake security. It is completely redundant.

Screenlock does exactly what its name says, and it actually has a purpose.

Because it is fake/redudant (again: exactly what does full device encryption prevent?), and it is annoying because it complicates my use of the device: access from other environments, recovery of data, performance, custom partitioning...

I'm not arguing about removal of actual security. But "security" as a keyword has too much nonsense attached to it, and most of the time it doesn't even refer to real security in any way. "Privacy", on the other hand, is often forgotten... and is actually a much more significant issue since few companies care.

Feel free to continue any of the existing "oh my god security craze!!!" threads where I've already explained myself to exhaustion.

You are actually completely missing the point of the cartoon.
Though I have the advantage of remembering what was going when that cartoon was first published. (Hint: 9/11).

As I said, I've bumped on the fact _that does not work_ when using a lockcode a few times myself.