One of the angriest men in the world has once again revealed the hatred that motivates him. Tuesday on the social media platform X, deranged liberal Keith Olbermann, a former ESPN sportscaster whose multiple stints across various networks have almost uniformly ended in acrimony, took needless personal shots at NFL Hall of Famer Brett Favre, prompting a reply in-kind from the longtime superstar quarterback who spent most of his career with the Green Bay Packers. On Monday, Favre posted something patriotic — a mortal sin to a leftist lunatic like Olbermann. “If you’re born in the USA or an Amer…