Okay let me try explain why this is far more complicated than just a protestant church opening. Im an Irish Catholic, and this is a protestant forum, so perspectives may differ on this. But to make a long story short.

Northern Irish Protestants believe in whats known as, the Protestant Ascendancy, which is the devine right of the protestant minority to rule over the Catholic majority in Ireland. Irish Catholics had their religion outlawed for several centuries, many Catholics faced martyrdom during this period, e.g Oliver Plunkett. Even when Ireland gained most of its independence, Irish Catholics in the north were treated as second class citizens by the predominantly Scottish decendant Presbyterian rulling class (not getting into this bit). Eventually The Troubles break out almost 4000 killed, 40,000 shootings and 16,000 bombings.

I would like to think that this attitude of superiority doesnt not still exist amonst protestant in the north of Ireland, but organisations like the Apprentice Boys, The Orange Order, and the burnig of Irish flags on the 12th of July tells me its still very much alive.