Punishment for deliberate assault should be pretty much the same regardless of the victim. What if the firefighter was himself of Chinese origin and he was upset about wealthy Chinese investors from Hong Kong buying up houses? He hit an Asian gentleman who was carrying an open house flyer and getting into his Tesla Model S, with malice aforethought.
What if he ran into a guy in a BMW because he thought a rich guy in a BMW was boinking his wife?
Should this be punished any differently than your Jewish example? My opinion is “no.” Random yet premeditated violence should be punished similarly regardless of the victim and perpetrator.