Your kid has already decided, I know it can be difficult to understand but this situation reminds me of the old proverb "You can lead a horse to water but you can't make them drink"
I remember my son telling me he was done with Little League Baseball out of the blue at the end of the post season and all-stars. I was a bit surprised at first and thought maybe after some time he would change his mind but didn't really talk to him much about it until the coaches started calling about fall ball. He basically told me he didn't have the desire anymore to put in the time to play at the level he wanted, he has always been a self starter and would practice hitting and pitching on his own all the time. Takes too many hours he told be and he wanted to focus on other things now.
I cherished the moments we played catch together, hit, pitched and learned the game, this was the one and only sport he play(s)ed I had a background in so it was joy watching him grow, develop, and become a complete competitive player but in the end it was better to let make his own decisions and go his own way. Other than asking him if he was sure about half dozen times and telling the disappointed coaches who thought we were crazy he never looked back and we still play catch and pickup baseball with friends every once in while specially during the MLB post seasons.
IF the kids gets joy out of playing video games my advice is don't discourage them, moderate yes. One of mine is a FIFA nut and knows that everything else; school, academics, sports, and other obligations should come first and sometimes I have to remind him of this but he does a pretty good job at self moderation, I check every once in while to see how many hours are spent and occasionally we have to agree on some adjustments
Open two way communications and understanding goes a long way, not easy and teens can be stubborn and think they know it all already bit we just have to remind them they have a long way to go and they need to continue to grow, work on many things and develop as young adults.
Kids grow up so quickly nowadays so enjoy the moments when you can, the are fleeting is seems as the older the get but is still fun to play pickup with them, talk about the newest music, there favorite teams, players, are there latest muse'es