he saw blatant sectarianism whilst out for a walk
"Where's your girlfriend from?" (To my polish catholic boyfriend of the time) ... "X place" (known to be mostly protestant) .. "Oh, she's a fucking Hun!".
Young man in town centre bar asks me repeated questions about my name and where I'm from originally, I answer, he points down at my head from above and shouts "She's a Hun, we've got a Hun here!". My Austrian companion, who invited me out for drinks in his group, is non plussed and I have to explain to her.
My Polish bf is friendly to one of the few protestants working in his workplace (because the guy is kind and friendly to him), his work colleague says "don't give the time of day to him, he's a prod, they're all black bastards, you can't trust them".
My uni friend's Mum, when I'm trying to be polite & interested about her talking about her pilgrimmage trip to a place I hadn't heard of, calls me a "Wee Prod".
My uncle, before his family moved out of an area that was originally mixed but is now 99.9% catholic, was trapped as a child under a trolley and pissed on by boys who decided they hated him because he was a "prod".
The entire side (of a river) of our hometown was emptied of protestants .... With only one tiny enclave left near the city centre, because protestants didn't feel safe living there any more.
As a female, I didnt even get the worse of it .... Because mostly they would never beat up women, but it used to be unsafe for Protestant men to socialise in large parts of my hometown.
I have no idea why you are surprised about any sectarianism in NI.
You just seem naive, at best. Like most people who aren't from here.