MAGA is just United Russia with a different supreme leader. The end-game is the same - a vaguely lipservice-Christian[1] autocracy.

When they tell you of all the insane shit they want, believe them. They are an existential threat to the republic, because they don't place any value any of the immutable principles of the republic, and will sell all of them up the river to see their guy win.

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[1] Their actual behavior is incredibly un-Christ-like.