Players generally let their character AFK while they sleep, eat or go to work BUT they are playing during "prime-time". Your inability to log during that "prime-time" has nothing to do with AFK players. The fact that only 7800 players can be logged in at the same time is the reason why. I suspect there are about 10000-12000 players on each server wanting to play during prime-time.

AFK players aren't the problem... the popularity of this game is overwhelming the servers (if everyone creating a character on a server could play, your issue would be solved).

Doing an "Auto-Logout" is just like putting a blaster on an open wound... it will continue to bleed (only a bit slower) and you will still have an open-wound.