COVID: folks denying and ignoring basic science behind how COVID spreads in terms of not wanting to mask up and/or get vaccinated.

Reparations: folks denying and ignoring basic history in terms of no fiscal retribution behind the years of unlawful treatment behind slavery, post slavery Jim Crow discrimination, and current lack of an even playing field in many aspects of society between black and white folk in the US because of lack of said retributions.