JWs aren't there to debate or argue. If you do, you aren't the low hanging fruit that doesn't think critically. You probably have a life of your own, with internet access, who googles stuff they don't know about to learn more.
JW's are there to find the gullable, hurt, easily misled bunch who like the idea of forever, but who have no idea that forever is a concept that is used as a bait and switch tactic by JW's. Because the GB isn't even about eternity.
Right now, the GB is about moving out of Brooklyn to upstate NY. That can't be debated or argued. Screw forever.