Unless his figures are wrong, he is right. You CAN’T take of from an airport because of a heavy plane.....because they will never let you land there to begin with. Nowhere did he say that the plane couldn’t take off because it was too heavy. He said it “will be unable to operate out of at least 20% of the airfields”.
Whether a plane can land at an airport isn’t necessarily a function of it’s weight but it’s footprint, or how effectively that weight is distributed. Some other considerations would be whether the taxiways and runways could accomodate an aircraft with a wide wingspan. His argument was naive and probably suited for an audience that doesn’t understand the details. I was taking exception to the simplistic argument he was using. I do however agree with him on several of his points that are more critical than these two.
He said it was his wild ass guess.