Since the blue areas are not contiguous, what would happen with them? You can’t allow them to make four little blue states while the red areas only make two red states; that would be a net gain of two liberal senators.
The four conservative senators would be negated by the eight liberal senators, leading to a surplus of four liberal senators in that region. This is a net gain of two since the region currently has two liberal senators.
All right, the new blue California can have a one centimeter-wide strip along the high tide mark of Orange County beaches. That will connect the San Diego blue area with the LA blue area. Mono, Alpine, and Nevada counties in eastern CA will have to be incorporated into the new red states.