tbf, quibbling about whether racist is the right word to describe the dickheadery of the guys in the video shouldn't really be the headline.
Those guys were dickheads, and whether it was racist, bigoted, prejudiced, or whatever else, it doesn't really matter. It shouldn't be acceptable behaviour.
Arguing about whether "muslim isn't a race" won't make their behaviour any more acceptable even if it's decided that you can't use racism to describe Islamophobia, Iranian-hate, or calling non-white people monkey and telling them to go back where they came from.
Call it flurovestwearingcocksuckery for all I care at this stage, they're wankers.