While I understand this rider’s frustration with people blocking a bike lane when they could and should be on the sidewalk, his solution to the problem may cause more hostility against riders. Best approach is to reduce your speed and give a polite “behind you” or “on your left.” That will work better than blasting off someone’s toupee. You also don’t want to become a victim of road rage (or in this case, pedestrian rage).
https://youtu.be/sOFwOBH-N_g