One thing to remember is theres a rather strong tradition in Ireland of opposing 'British' sports and protecting Gaelic ones, even football and Rugby have fallen foul at times, so cricket is very unlikely to be taken to heart as much as it is in somewhere like New Zealand.
This is an interesting point, so I'll rant about it. I don't think political Gaelic protectionism is a problem for cricket, as it is for rugby and football. What we see there is a blanket refusal of the GAA (ICC equivalent for Gaelic sports) to co-operate with other sports. So matches are organised purposely to clash with the football/rugby schedules, they aren't allowed access to Gaelic facilities, they have to compete for government funding even in cases where a sharing arrangement would make a lot more sense.
Cricket wouldn't have much use for Gaelic facilities anyway, but more importantly, there's very little overlap between cricketers and Gaelic footballers/hurlers. Cricket has two strongholds: Northern Protestants, and the big, mostly-urban grammar schools, neither of whom are at all big on Gaelic sports. Outside of these strongholds, cricket can't compete anyway, regardless of the cross-sport politics. At best we could reach something like in England, where it's a sport played by a reasonably-sized niche, mostly consisting of rich people.
The second layer is cultural opposition to British sports. This is more serious. A decent chunk of Irish culture is defined in opposition to the English class system, which permeates cricketing culture to an embarrassing degree. Playing like a gentleman is not something Irish people aspire to. So it's not a very well-respected sport- to a lot of people, you're a posh tw*t for having any interest in it. Or you're boring.
What I would hope to see is the growth of our own cricketing counter-culture; a distinctive way of playing the game that openly rejects the stereotypical English way. We saw that with the West Indies, and to a lesser extent with Australia. A problem with this might be that so many of those who play cricket in Ireland are culturally quite close to England. But I still think it's possible. Beating England at the World Cup when our fat ginger Dubliner scored a century without playing a single "proper" cricket shot- that helps a lot.