I,ve heard of 'em !
Sadly this “de- platforming” is becoming more and more common. - The Universities are very Fast to Ban or disinvite people for hardly any reasons, often made up.
People who argue against the “Gospel of Global Warming” end up suddenly disappearing from the TV (David Bellamy et al) and getting shouted down by the chanters "97% of Scientists say so ! " (Completely false by the way) the moment you start to ask any inteligent questions or mention problems with the “Gospel” !
Feminism questoners, Justice for men and Boys organisations, Even Comedians won’t now appear in Universities - for their own safety !
The General mainsream media such as BBC have pretty much stopped even pretending to be unbiased
Now the underlying fear is that “They” are intending to Defeat “Brexit” and “Correct the US Political system” back to Democrat. - “Free speech” is under severe - (possibly terminal ) threat !
I am less than optimistic for your futures (I’m old - so it doesn’t affect me that much)