Complex sentence: The film states that it is time to call a halt to the suffering, and suggested that long as the KC is permitted to tolerate human whim leading to dogs that cannot run, breathe, or see freely, it will never change.
Split into simpler sentences: The film states that it is time to call a halt to the suffering. As long as the KC tolerates the human whim that has led to dogs that cannot run, breathe or see freely, it will never change.