I find partisan politics disgusting, even repulsive for many reasons. Perhaps the most important is that it rests from A to Z on dishonesty and fraud.
Partisans on each side — in the USA, both registered Democrats and Republicans, both self-avowed progressives and conservatives — act overwhelmingly on the principle that above all they must seek to destroy their partisan opponents, must revile and demonize them on the assumption that when those enemies have been thoroughly exposed and discredited, what remains and what results will be good and glorious for everyone.
Each side is as culpable as the other; neither values truth, freedom, or humanity any more than the other. Each wants to win, to hurt its opponents, to drive them from the field of battle and savor their lamentations.