Comment: Partisanship is a powerful force

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In reply to comment: Indeed we share.. (see in situ)

Partisanship is a powerful force

as you point out so well. Many people not only support their political parties, they actually identify with them. They see attacks on their party as personal attacks on themselves and, deep down, feel a threat on a physical level. Human beings are social, tribal. That's how we survived against powerful outside threats for thousands of centuries. Breaking through that tendency when it is called for, isn't easy for us.