Yes James Craig said Northern Ireland was a "Protestant State", but why do we forget de Valera said that Ireland was "a Catholic nation"

John Draper wrote in History Ireland:

"Did the Unionist leader James Craig really describe Stormont as a ‘Protestant parliament for a Protestant people’, as quoted by Tony Canavan in ‘A papist painting for a Protestant parliament’ (HI 16.1, Jan./Feb. 2008)? This is at variance with the version given by Craig’s biographer, Patrick Buckland (James Craig, Gill and Macmillan, 1980). Citing Northern Ireland House of Commons records, Buckland says that Craig was making a comparison between the north and the south. Craig is recorded as saying that southerners had boasted and ‘. . . still boast of Southern Ireland being a Catholic State. All I boast of is that we are a Protestant Parliament and a Protestant State.’ Note that in this version there is no reference to the northern state and parliament being ‘for a Protestant people’. Critics may draw that inference, but that does not mean that the prime minister uttered those words. 

Having to speak to republicans like they're a child

James Stephens said:

"It is too generally conceived among Nationalists that the attitude of Ulster towards Ireland is rooted in ignorance and bigotry."

John Hume said that being pro-Union does not make you a bigot. He wrote in his famous 1964 letters for the Irish Times:

"Another positive step towards easing community tensions and towards removing what bigotry exists among Catholics would be to recognize that the Protestant tradition in the North is as strong and as legitimate as our own. Such recognition is our first step towards better relations. We must be prepared to accept this and to realize that the fact that a man wishes Northern Ireland to remain part of the United Kingdom does not necessarily make him a bigot or a discriminator. Which leads me to the constitutional question."