ayatollah, i think the schadenfreude of seeing that wee eejit making a fool of himself was winning over the no platform idea honestly!
That's always been a view, when confronted with the frankly bonkers, and often carpet chewing delivery, of racist/fascist views. But in whose eyes would he be "making an eejit" of himself ? Us yeh, but we aren't the target audience. Look at the seriously bonkers ,spittle flecked, rants by Hitler on old newsreels, and its tempting to think "surely the audience must be starting to shuffle its collective feet, and nervously whispering .."Adolf's really lost it this time".... but no, they lapped it up every time.
When society goes into crisis all the deeply embedded idological shit in society starts to surface, and the irrational , the atavistic hatreds, suddenly become "just expressing a commonly held viewpoint" .. and the exposition of racist/sectarian hatred in public forums simply does build the momentum of the racist tide. I know that with the internet in particular , "No Platform" is much harder to enforce nowadays, but in the public meeting forum, fascists have to be banned or physically suppressed.. brutally if possible ... not invited in to take part in a civilised debate.
"Only if our opponents had understood from the very beginning the nature and objectives of our new movement, and had brutally suppressed it from its first days.. could the National Socialist Movement have been stopped" a from memory approximation to that famous quote from A.Hitler himself. He was correct on that one at least.