Not an MP, but still an assault. I've taken part in demonstrations and have seen for myself that this sort of response to activists is not an isolated one. In the publisher's own words he makes it clear that he believes his actions were justified:
"I did what any self-respecting publisher would do - got out of the car, ran across, got him in an armlock and pulled him out of the shot," he said. "He started resisting and we ended up in an unseemly tumble on the ground........Everyone has an inalienable right to protest, but no one has a right to make a continual nuisance of themselves and interrupt interviews like that."
Shameful in my view, but this man has no shame.