Video games are designed to make you hooked and extract as much as they can from you. You are slaves on the world they created, wasting your consciousness away on a virtual world. And the grinding games are the absolute worst, its just the same gameplay over and over.
Video games are truly addictive and I agree to what you've said but it is also a way for others to relax and enjoy their time, have fun with their friends or socialize.
Grinding games could be boring because you would just repeat it over and over again but we are playing or doing it because we have a goal in the game.