"One reason that partisanship was so divisive was that neither side recognized the legitimacy of the other's existence. Each party considered itself to be the rightful heir of the American Revolution and the sole possessor of the true method of governance." -- Rosemary Zagarri, Revolutionary Backlash: Women and Politics in the Early American Republic (Philadelphia, 2007), 120.
That seems to hold true for at least one party today. The one that wants to "take our country back," as if women, LGBTQI people, African Americans, immigrants, Hispanics, Asian-Americans, and pretty much everyone were not part of "our country," as if the country itself had been invaded by aliens.