That sucks, you're doing the right thing. Did you consider getting the tapes of who did it from the store cameras? Although it's probably too late now. They should be punished for their toxic behavior.

There definitely are people who's empathy hasn't improved. Maybe two-thirds of the population's empathy has improved, but the remainder became even more sociopathic. They get mad when people wear masks, when billionaires get taxed, or when medical services are given to homeless people. There is a group that just lives on fear and rage. They somehow think that keying someone's car who wears a mask is justified because...? Maybe just that they saw people wearing masks during the pandemic and concluded masks cause pandemics.