Every Sunday my family brings a bucket of chicken to the church and eats it noisily during the service, help!?

Other members of our congregation give my family weird eye signals, but my family seems totally unaffected by it. I've told my parents that it is embarring, but they say that I'm just a kid and that I don't know what I'm talking about. They tell me that arguing with them is a good way to go to hell. I don't want to go to hell, but I don't want my parents to get fat either. My best friend Bryce says that his parents told him that he can't talk to me anymore, and that I'm not allowed to go to this year's pray-a-thon with him. What should I do?