So he met a jerk, big deal, the world is full of them. Now he's shaking in his shoes because a taxi driver knows where he lives. This guy needs to grow a set of cahones.
He also needs to stop being a wimp and tell people like that to - "STFU."
I think the taxi driver is much more than just a simple jerk. When he said, "Maybe I am just going to now crash this car and kill both of us," well, the words say it all. Yes, the author is a Jewish liberal who keeps voting for the party which screws his people, but maybe experiences like this will help him learn someday.
If I had been the passenger in that taxi, I would take those threats very seriously. I wouldn't be "shaking in my shoes," but knowing that the taxi driver could end up not being charged, or being released on bail...well, I feel a lot safer with at least one gun in the drawer next to the bed, rather than having them all locked up in the safe. No shoe-shaking, just suitable precautions.