I don't want to do this trade. I'm not defending this, but I will point out that there is a reason Danny Green has been on a bunch of championship teams. I mean, some people argued that he had a more positive impact on the game than DeRozan when the Raptors made that trade.
I do also still wonder if there are some Kuzma believers in the NBA. A team like the Hornets, Wizards are Knicks would almost certainly talk themselves into a "20 ppg" scorer. The Cs could flip him to one of those teams for a playoff contributor.
Still, I'd rather keep Hayward.