Politicians you don't like can make good policies and politicians you do like can make bad policies. Parties are not football teams for you to take blind sides and politicians are not celebrities to be veneered blindly. They are public servants, nothing more.
It's a global phenomenon, but Americans are particularly affect by the false dichotomy fallacy of having the two sides of political spectrum represented when, in reality, they just have two flavors of right to choose from. Both are shit in their own way.
People love to turn off their brains and follow the leadership. That's what makes us easily manipulable. It's not because someone aligns politically with you that they are working with your best interest in mind.
Sorry for the random rambling.
Ad hominem. Yes, that's it.