A second premise I want to address is the idea that using games (or movies or books or whatever) as a mind numbing distraction is a waste of time or the fault of the escape itself. Tons of people are dealing with really intense trauma, and it's not really clear that there really is a better short term alternative for stress management. I think if people are doing things like slashing monsters for 100 hours in Diablo don't look at Diablo, look at what's going on in the rest of their life. Because you can take away Diablo, but you if you aren't fixing what makes them play a shitty game as a distraction for 100 hours you haven't really helped them at all.
Finally: tons of people run pathologically. I mean basically anyone who is serious about the sport does more damage to themselves than is necessary, and runs far more than the optimal amount. I don't think running is exactly the same as gaming, but it's worth examining why we as a culture have no problem discussing Larry's second hip replacement from running 10 miles a day but tremble when discussing Larry's son's 10th hour this week playing Fortnite.