Kawhi is indeed the best wing defender in the game. He is indeed no slouch, and it's not disprespecting him in any way by saying he couldn't yet carry Robinson's jock. He's got an incredible work ethic, a champion's mindset, and he's labored really hard to become a top player in the NBA, something Robinson was from the second he stepped into the league.
I hope that OP's prediction comes true, because that will mean that Kawhi continues his immense improvement as a player. Make no mistake about how high that bar is.