Quote:
«we find that people who tend to moralize politics display more partisan bias, distance and hostility, irrespective of partisan strength.»

Document:
Kristin N. Garrett 2018. "The Moral Roots of Partisan Division: How Moral Conviction Heightens Affective Polarization", British Journal of Political Science, Volume 50 , Issue 2 , April 2020 , pp. 621 - 640
https://www.cambridge.org/core/journals/british-journal-of-political-science/article/abs/moral-roots-of-partisan-division-how-moral-conviction-heightens-affective-polarization/78B6152EF1CBD7D8890DC0D48B6D65B4