It’s an insult to the Irish! He can’t be Irish! Drunk yes, Irish No!
According to Wikipedia, "Biden was born in Scranton, Pennsylvania, the son of Joseph Robinette Biden Sr. (1915–2002) and Catherine Eugenia "Jean" Finnegan (1917–2010). He was the first of four siblings in an Irish Catholic family with roots in County Londonderry."
When I went to Ireland on my "roots" tour in 2000 or so, I was astounded and saddened at the knee-jerk Bush hatred and warmed-over leftism concerning America.