People who suggest they know what is best for other people outside of their family.
People who suggest that people need to be controlled/told what to do.
People who suggest they can spend my money better than I can.
Politicians who claim to be for the "working man" and "the poor."
Politicians who always claim that government is "the solution."
People who think that rich people deserve welfare more than poor people.
People who think that only governments can oppress Americans.
People who blindly state that government is universally the problem or the solution.
People who know so little about economics that they believe in the idea of "my money".
Also:
People who believe that the founders universally agreed and had a unified vision for America.That's a massive pet peeve for me.