Can't compare Orangemen to Nazis?
Nazis oppressed Catholics. So did Orangemen.
Nazis loved to bully their enemies in the streets with parades and brawls. So do the Orangemen.
Nazis loved to remind their defeated foes who was boss through public acts of humiliation. So do the Orangemen.
Nazis were bigots. So are the Orangemen.
Granted, the comparison is limited, but it works within reason.
I don't recall a genocide in Northern Ireland, and the Famine wasn't genocide.
Go to somewhere else if you want to defend the IRA!!