Unlike if he wore a niqab, Mr. Butt would still be perfectly identifiable, so my comparison, like all comparisons, has its limitations as it only covers part of the problem. 

He would just be considered rude and boorish, and people would react accordingly, i.e. have a "visceral reaction" to someone not interacting with them face to face.

Should that "visceral" reaction be considered "hate", and illegitimate, as per Mr. Butt's claim?