There’s a lot of debate about whether Dak Prescott is worth what he’s asking for, but that’s missing the point.
If you want to argue that the Dallas Cowboys should move on from Prescott instead of paying him a long-term extension, that’s reasonable. He’ll command a lot of money. Teams tying up a huge percentage of their cap into one player generally don’t win big.
But don’t act like this is eBay with a “or best offer” option. The Cowboys have to pay Prescott what he wants, or someone else will. There’s no universe in which the Cowboys determine Prescott is only “worth” $20 million a year and he accepts that.