Should Milo be allowed to speak?
I think he should. Criticise the troll and take it apart with your arguments. Getting angry or no platforming gives him exactly what he wants.
https://www.google.co.uk/amp/s/amp.theguardian.com/commentisfree/2017/feb/06/free-speech-milo-yiannopoulos-alt-right-far-right
https://www.google.co.uk/amp/s/amp.theguardian.com/commentisfree/2017/feb/06/free-speech-milo-yiannopoulos-alt-right-far-right