This is entertainment?
Hell Yeah! why dont we have some games where you dont kill, where you are thought about important things in life, so much killing everywhere.
Because video games are about escapism. How many copies do you think a game where you had to fill in tax returns would sell? Do you know anybody who enjoys the thrill of filling out government forms? I mean how many parents would sit their kids in front of the "hostel" or other video nasties regulary, play unsupervised with fireworks or let them drink themselves stupid every night?
More than you might think. However bad parenting is also not caused by videogames.