I would rather riot revert the entirety of season 7 back to mid season 6 and start over from there
Honestly I know that riots trying to fix the problems but the fact is they created these in the first place. The mage update started this long downwards spiral of fuck ups and now we're here. At one of the lowest points I've seen the game. The jungle changes weren't even necessary to begin with and that caused more than half of the problems and then the assassin update just sealed it.
Reverting the entire game is extreme but easily the best option. Any problems that were handled mid season 6 can be solved in different ways than they currently were.