I mean, you're actively ignoring that the centerpiece of that deal was Al Jefferson and that not a single one of the four players you included in your proposed package are even close to the level of player Jefferson was at the time of the KG trade.
Didn't ignore it, was making the point that that there is more to trades than just the centerpiece, their are things like expiring contracts, exemptions and draft picks.
Yeah, but... you know... the centerpiece is the most important part of the deal. You think the Wolves were making that deal with Kendrick Perkins in place of Al Jefferson? Oh, and if they had to give up their own draft pick? Of course not.
You also ignored the details of the Melo and Chris Paul trades
No, I haven't -- those deals aren't particularly relevant.
Melo trade: aside from the fact that Felton was a pretty big piece at the time (he was getting All-Star consideration and was averaging 17/9 for the Knicks, a near double-double), pretty much every single analyst agreed at the time that New York gave up far too many assets given that Melo was going to be a free agent in two or, at the absolute most, four months. That trade only looks even worse given what's happened to the Knicks since then. Cousins is under contract on a reasonable deal for another three years. Not applicable in this conversation.
CP3 trade: do you not realize how heralded a prospect Eric Gordon was at the time he was traded? He was viewed as being on the cusp of becoming what James Harden is now. Throw in a highly coveted Minnesota draft pick and that package wasn't bad at all. And, again, CP3 had didn't have three years left on his deal; he had one and a player option for another.