Make Turrets Deal True Damage
With the current trend of the game, and the lacking of an actual line of defense from tanks and driver's in this game, having towers deal true damage would fix a large amount of issues.
Towers would be deadly throughout all of the game, and juggernauts wouldn't be able to dance under them for a minute at the time.
Diving people under tower would become risky again. Risks in dives have slowly gone away over time.
Games would last longer. People would have to make safer decisions. People will no longer be able to dive at level 3 and get out. This in turn will decrease a hypercarry's snowball time to snowball.
It doesn't have to be 100% true damage, but maybe splitting the damage up to 30% physical/30% magical/40% true damage would help a lot.