The flaw to this argument, well argued as it may be, is that it's premised on the idea that due to today's game, Kareem wouldn't get the touches he needs and when he does, his impact is limited to his own scoring
As others have brought up, it doesn't matter what the climate is, if I have prime Kareem on my team now, he's getting all the touches. It's that simple. He's not no God damn Joel Embid. He would be the best player in the league, with no true peer at his position. Why wouldn't he constantly be fed?
And once he has the ball, he's either gonna chump whoever is guarding him or draw the double and find the open shooter.
You literally just need a competent ball handler who can get him the ball. It's not difficult to get Kareem the ball in the paint.