Is there no limit to the amount of money you would pay Parsons? Is there no amount of draft picks you would accept in trade? Of course not- so now it's just a debate about how much money or how many draft picks.
Your statement that the roster would be full of JAGS if it was up to me is hogwash! I've never advocated that. I will grant you the point that "draft picks don't guarantee anything". This is true, and Parsons is one hell of a "bird in the hand".
My original statement, which I stand by, is it would be good to know what Parson's trade value is before signing him to an extraordinarily expensive contract. It's just common sense, and good business.
There is no dispute that Parsons is a game changing player. How long he can maintain that level, and what percentage of the team's salary cap is warranted are up to debate.