It may be completely foreign to most English speakers now, but so were many words from the other languages at some point in history. English people got used to them, and I believe they will get used to Irish names to some extent too, as long as they don't close their minds against them because they "make no sense".
Maybe some of the names won't go over because they're just too different, but I don't see what's mad about Lorccan / Lorcan, Cuan, Cian, and once you've learned some basic rules, it's not difficult to figure out most of the others.