It appears to be politically expedient to fan the flames of bigotry. Hate acted upon is a demonstration of power. It is also a refusal to share power. Outbreaks of hate attacks often occur in periods of transition as in the time of the ending of legalized slavery, and, later, the ending of Jim Crow segregation laws. The attacks typically have resulted in changes becoming more cosmetic than substantive.
Denial is woven into the fabric of our society.
The comforting illusion for many non-targeted groups is that bigotry stems from a few weirdos residing on the margins of society. Truth is many people are complicit with the maintenance and perpetuation of hatred. Hate-filled attacks on people who are different are based on judgments about skin color, national origin, the ability to speak English with or without an accent, religion, sexual orientation, gender, physical ability. Children learn early upon whom they are to vent their anger. They learn what categories of people are devalued as less than human as they listen to their parents and caregivers.