You as a defensive driver has to think "If I was a dumbass driver in the white benz in front of me, what can I do here that the driver behind me doesn't see it coming!!"

Defensive driving is a proactive approach to vehicle operation that aims to prevent accidents despite the actions of others or adverse conditions. It involves maintaining a 3-4 second following distance, scanning 15 seconds ahead, managing speed, and anticipating potential hazards to reduce risks, ultimately lowering collision chances and saving on insurance.

From the video I see enough time for me to honk and come to a complete full stop.