People underestimate the spiritual power of responding to an asshole with instant and maximum rage, cutting them off before they can even finish with a bellowing full-chested SHUTTHEFUCKUP.
No lead time, just instant rage cranked up to 11.
The asshole wants to appear civil, they want to say violent things in a calm voice.
Responding with instant, 100% fury, deprives them of that opportunity to pretend a civil debate is occurring over whether some people are less than human.