Lot of people do this. Can't help but disagree.
You can pick a "Republican" and a "Democrat"... and they will be almost binary on the bigger issues and policies. Pro/Anti gun. Pro Life/choice. Pro/anti military force. Pro/anti business. Pro/anti gay marriage. Pro/anti religion.
The two parties have pretty clear lines of what they typically represent.
Yes, it's the same as when "your politician" gets caught in a lie to say that it's no big deal since they all lie.