the anti-progress left

Just a quickie, Brendan O'Neill is complaining in the Guardian about the terrible yoof of today. The whoever the sub-editor was sums his argument up as them being sanctimonious, censorious, snobbish and anti-progress. But I wonder if anyone is going to mention that the groups that he complains about are all on what is often called the 'left' or involved in causes that the 'left' has taken as it's own.