Don’t be so sure it would have ended so well. Look at France, their nobility tried to make the country Calvinist, did nit succeed. But the Church became very sick for the next 200 years or so. It saw itself as primarily a support for the monarchy and dependent on the monarchy to survive. No one took the faith seriously. Hence the revelotuinists in the 1790s truly saw it as part and parcel if the ancein regime. Their big mistake was its persecution, but they never would have guessed either a) anyone would care about them taking control if the Church or b) that the persecution would (as often happens) revive the faith. So finally there was a renewal if the Church there during the 19th century, but never did it regain it’s glory (word used in the truest sense).
Hard to imagine that the noblility who had been made rich in England off the reformation would have ever returned truly to the faith. As it was, the Oxford movement started a return to Catholicism that, in a sense, has saved what’s left of Christianity in England (more Catholics attend Sunday mass in that country than members if CoE attend their services).
Also, just as we find glory in the early persecution of the Church and recognize the persecution actually help build the Church, so, after long years, can we see the glory and strengthening of the Irish Church due to it’s persecution .