The IFA was established before Northern Ireland was.
I made one point, that those boys and young men would not call themselves Irish. That's my opinion.
I can say with confidence that none of the loyalists, male or female, that I know would call themselves Irish in a million years.
They would never get an Irish passport, even though they can, despite it being such a good passport to travel on.
There is such fear of their heritage and identity being eroded. That's part of the reason why some in communities such as in the Village resist change and resent 'outsiders' moving in. I was living in the Village before, during and after the redevelopment (which happened about 15 years ago). There was a poll done. Some residents (albeit a small number) didn't want redevelopment to happen at all, despite some houses still having outdoor toilets, and many more being damp and derelict etc. They wanted to keep their enclave/stronghold.
I think many others saw, and still see it as a loyalist ghetto. But, the paramilitaries need to ensure future recruitment, so change is not encouraged, education up and out is not encouraged.
I know many families there, and the vast majority that I've met are, of course, decent and forward thinking. I know a mum, whole family for generations born and raised in the Village/Sandy Row, whose daughter plays football. I see her out training in her NI/IFA top. Her mum has started her gaelic football training to improve her speed, skills & fitness after seeing a wee GAA team train. She says some of her neighbours have given her a bit of grief, but she doesn't give a flying fuck.
FWIW, I was a huge admirer of David Ervine. His loyalist credentials, his political clout, his intelligence and his forward thinking were some combination.
I remember him once saying (in an interview, possibly) 'why shouldn't I call myself Irish?'
He challenged deeply established thinking & was a huge loss here.
Of course the whole thing is all so much more complicated and nuanced than can be conveyed in a few posts here. I'm not as green as my heritage naive.