The mob has an infinite well of issues, the mob will never be satisfied. That's exactly how it transitions into totalitarianism. Pandering to the mob just adds more fuel to the fire.
Police brutality etc. are issues that should certainly be addressed, and there's countless other societal issues that need to be looked at. But dealing with those and pandering to the mob are orthogonal issues. We have a democracy, the rule of law, and a government structure specifically to define a process for addressing such issues. These are the mechanisms that differentiate the western world from the soviet nightmare my parents escaped. It's so bizarre and terrifying to watch people openly advocating for discarding them and embracing mob rule. Americans have fought and died to uphold these values, and now a pocket of their own citizenry wants to demolish them.
> You have to tackle issues which cause them to be aggressive towards racists to begin with
Pretty heavily loaded language there. Anyone mob targets = racist? There's far too much evidence of the mob targeting non-racists to even pretend that this is what motivates them at this stage. 'Racist', or rather the newspeak co-opted 'Bigot', is now just the current incarnation of 'Communist', 'Kulak', 'Witch' and whatever other generic labels for the enemy of the mob. The mob never runs out of enemies, the mob never runs out of issues to get angry about. It's Lord of the Flies at a national scale.