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https://www.wsj.com/articles/why-the-left-is-consumed-with-hate-1537723198?mod=hp_opin_pos1

No longer having the traditional bogeyman to fight, the left must turn it’s hate and anger on something else. The left is driven by one thing and one thing only: power.

The money quote: “Today’s left lacks worthy menaces to fight. It is driven to find a replacement for racism, some sweeping historical wrongdoing that morally empowers those who oppose it. (Climate change?) Failing this, only hatred is left.