It would be nice to get rid of a contract like that, free up cap space, and get someone decent. The problem is no one wants to be on the receiving end of that deal. You're right, this deal is hard to work out.
Plus, a lot of the Warriors' current assets stink. Wiggins flat out sucks, Klay is washed out, Green is unpredictable. Maybe Kuminga is the only good trade asset?