It is expected that some humans will not accept robots walking among the public. So they have to be vandalism-proof.

However, the guy in the video is attacking the robot in the wrong way. He should be using a spray paint can instead of a baseball bat.

what if the robot has little vials of acetone, IPA, etc. to wash off its lenses, while switching to mm-wave vision (not even dead reackoning) returns the favor to the offending human while cleaning its lens...

Unfortunately some humans are just violent in nature. Or perhaps most. When robots become as intelligent as humans, some people might enjoy abusing them like they once enjoyed abusing people of different skin color.