An 11 year old who has graduated college clearly has no free time, especially given his other listed endevours. Of course he will think video games are a waste of time, he would rather be studying something he considers meaningful and that will help him in his chosen career.
Video games are a leisure activity that should be enjoyed by those who can afford to , yes, waste some time. Not siomething that takes time out of the day when you should be doing your job, homework, chores, etc.
I bet part of it is also overbearing parents who have imposed their own standards upon him from birth.