There's no reason to celebrate the Irish Republican Army on St. Patrick's Day.

>But they fought against the British and Irish protestants with bombs.

Yes, and they blew up churches too, killing innocent people.

>But they're Catholic.

Not as much as they used to be hell; they even killed a 25-year-old Catholic police officer named Ronan Kerr in Northern Ireland with a car bomb in 2011, even making murals celebrating the man's death.

>Well, what about Sinn Féin?

Sinn Féin and the rest of the IRA are all left-wing cowards who support faggotry and marxist socialism.