The protest was organised by "Riseup Eireann" - an outfit which had been pushing RT conspiracy memes before their account was taken down. It included posts on "Elite Pedophiles", "Criminal Government Pharma Cartel", "Corrupt Media and Dark Agenda" etc. A number of the people associated with it were also involved with the Irish Yellow Vests, Irish Freedon Party and National Front Ireland - as well as part of the G'OD & Waters activities.
So the nutters didn't just turn up and hang out with their more sensible counterparts. These were the people organising it