There are so many reasons why you should just let gamers be gamers. Aside from the fact that everybody should be allowed to do whatever they enjoy without judgement from people who don't enjoy the same thing, games aren't causing us any harm. They're fun! Games have also made quite a significant positive impact on me in multiple ways.
Kept Me Out of trouble
I can only speak for myself when I say that games have kept me out of trouble throughout the years. While quite a number of my peers have gotten into drugs and late night partying and whatnot, I've always been happy to just stay at home and play Gran Turismo in my room. My love of games has prevented me from doing some properly stupid things and I'm very thankful for that.
Helps Relieve Stress
I've had days when I've arrived home really stressed out with all that's happened throughout the day and I'd be in a terrible mood. Usually, about an hour or so of gaming would cure that. In games, we can do extremely ludicrous things without any real repercussions which means we're able to let loose all of our pent up rage on the game's NPCs. I can assure you that this is quite therapeutic.
Helps Keep A Sharp Mind
Playing video games can actually help keep the player's mind sharp. This might seem like an odd concept to non-gamers but playing games does take quite a bit of skill. You can't just laze around and hope to overcome the obstacles the game has put in front of you. You have to be able to think quickly and react! You have to be observant and resourceful! Gamers are a smart bunch, you know.
There's absolutely nothing wrong with enjoying video games. I can understand that not everybody enjoys games just like not everybody enjoys going out and playing football or getting drunk or going bungee jumping. Gamers aren't causing any harm so please let us game. Let Gamers be gamers.