This has implications for the current presidential race. Donald Trump is fighting hard--and not just with Hillary Clinton. Yet, despite all this fighting, he continues to sink in the polls. Clinton's 3-point lead in early October has grown to a 7-point one, according to RCP. Trump's major polling deficits are in questions about his temperament and judgement; the groups he struggles with are women and college-educated votes. Without improving his standing with those voters, it's hard to see how he wins the White House. Lashing out at all comers might provide a momentary frisson, but it's unclear if such a strategy provides that many electoral benefits.
Anger is rarely a foundation for a national political coalition. For those seeking elected office, fighting is less important than working to build a winning coalition.