I'm calling bullshit on that lol.

Gaming does not lead to less social behaviors. If anything, it allows people who struggle with socializing access to safe environemnts to learn on.

The other issues you are referring to are procrastination and staying up late. Games can be used to do these things, but they are not the cause. I still procrastinate just as much even if I forbid myself from my hobbies, and back when I was a teen it didn't matter how early I stopped playing games I would still not fall asleep earlier than 2am because my issue was anxiety and depression, not gaming.

Games are not bad for you. They can be used to unhealthily cope if you are refusing to acknowledge a real issue, but the games themselves do not harm you.