The problem with Russell Moore’s earlier comment about being on the right side of Jesus is not so much whether he was wrong or right about his observation. It was that he was speaking blatantly in Marxist categories, which are de facto anti-biblical, toxic to his own beliefs, destructive of the people he supposedly represents.
In Marxism, historical progress is inevitable and it moves inevitably toward greater unification and politicization of everything. Marxists throughout history have accused people (capitalists) of being on the wrong side of history. Moore did this same thing but in religious language and to religious people.