I'm not going to let my nephew play video games when he comes over to my house.
Why are you going to prevent him from playing video games?
He is so addicted to video games. He doesn't want to help with cleaning or cooking. I don't respect people like that.
Helping with cleaning and cooking is helpful around the house, and if someone can't do that then they are quite lazy. Tell him he can only play the games if he helps out around the house, then there will be equal sharing for all. Life will get better.
I'm not going to let my nephew live under my roof if he can't help out with chores.
It's understandable that your nephew's addiction to video games is frustrating for you, but give him a chance to improve. It seems that your nephew was not given the skills that he needs to help out. Teaching him how to help out and clean around the house will be beneficial for him and you.