The above is your opinion, it is not a fact, "
No - it is a fact
Irish singing is basically unaccompanied - most of the modern singers of Irish traditional song do not use accompaniment.
The recognised stylists in the Irish singing tradition are the sean nós singers, Joe Heaney, Sean ac Donchada, Roisín al Safti,,,, are all unaccompabnied singers
Name a stylist that sings with accompaniment
Jim Carroll