Irish History is not some mythical secret, obtainable only to the very special, I know all about the Famine, thanks.
I also think you should stop claiming the majority of Irish people supported the IRA. They clearly didn't, as evidenced by the large amount of protection money they had to forcibly extort from their own community order to fund their terrorist activities. Surely a loved organisation like the IRA wouldn't need to do such a thing to their own community.
Try telling the families of the three Gardaà murdered by the IRA, how all the Irish people support the IRA.
Try telling the largely Irish families of The Disappeared how much the all the Irish people support the IRA.
Then there's the fact the organisation responsible for killing the most Catholics in Northern Ireland was...the PIRA. You can have a look on the Sutton Index of Deaths at the CAIN website to verify that.