Root of warrior is a way of countering control teams, such as the one you are running with Hinata, Karin, Kakashi. In this lineup, your main damage is pretty much Kakashi, and if taken out before Root of Warrior wears off, you'll pretty much lose. That's how the game is, and it's a good thing that there are counters to every build.
Switch to more damage, or try to out-sustain them to Round 3 (they won't have bloodlust, so clones can tank standards). Try switching out Karin for Kabuto and Hinata for Tobi. Just because they are immune to debuffs, does not make you unable to combo them to death. :P