In the end, these zealots threaten the freedom of all of us. And that’s why they must be faced down remorselessly. To hell with their dictatorial assaults on free speech, with their echo chambers, safe spaces and phoney outrage. No more the craven apologies for having expressed a genuinely-held view. Make your case, stand your ground and be prepared to take the brickbats. If people are offended, tough. It’s time to hit back against the group-thinkers and no-platformers.