The thrust provided by the engines is independent of the wheels. It doesn't even have to be wheels most of you guys are caught up on that. What if the plane was floating on a pocket of air like an airboat. What does thrust care what the ground is doing? The ground/conveyor could be traveling at a 100 MPH and it would not affect the floating plane right? OK so lets start the engines and create some thrust. What happens to the plane then? It moves forward at a gradually increasing speeed, generates lift and takes off.

If you think about it the planet is a big ass conveyor traveling/spinning at thousands of miles per hour. According to you guys we would never be able to take off.