Green is the heartbeat of the team and captain of the defense. Golden State would have to be highly motivated to send him elsewhere, and Aldridge isn't nearly enticing enough. As for Wiggins, the Warriors already are short on wings, and losing him would further exacerbate that. Not to mention, the Dubs are
counting on Wiggins to either become their fourth star player or directly help them acquire one. Aldridge was a star for many seasons, but he isn't one anymore.
On top of the fact that Aldridge isn't worth giving up everything that was included in that proposed trade, he also doesn't fit in stylistically with how the Warriors want to play. He is a ball-stopper on offense and often an aloof defender. Yes, his proficiency shooting from the perimeter would be a nice addition, but not at the cost of everything else that would be thrown off.