Yeah I hear that same lame threat when my Red Sox are in Baltimordor trashing the Oreos..yet 34,000 out of the 40,000 fans are Red Sox fans.
Even though I live in the abysmal Communist State of Maryland I root for the Green Bay Packers (13 NFL Championships with 3 Super Bowl Championships) and the New England Patriots (3 Super Bowl Championships).
I am happy to say that nobody has ever played for either of those teams who has ever murdered anybody.
The Packers are one of the few teams with more penalties per game than the Ravens. One could say they have quite the reputation around the league for their "thuggish" behavior on the field.
My sense is that your antipathy with the Ravens has another component altogether .