Yeah, That's Another Weird Thing About Northern Ireland.

Unlike the Catholic Christian Church. Protestant Christians don't have a single leader, unifying the rules of their religion. As is to be expected. They literally got their start protesting against the leadership.

However the Church of England (CoE) has emerged as one of the largest Protestant sects. Through the; "Anglican Communion" and other 'Commonwealths' they keep trying to make their leader, the King of Great Britain, the Messiah of all the World's Protestants.

Northern Ireland's Protestants want to remain subjects of the United Kingdom of Great Britain, at all costs.

So you'd assume they're CoE Protestants, at the very least Anglicans.

You'd be wrong. They're mainly Dutch Baptists.

Did they not teach you that at school(?!)

https://www.youtube.com/watch?v=tfladPfvMrs&pp (The Orange And The Green, The Irish Rovers, Gems, Official Audio).