
Originally Posted by
locke
The Protestant community declined for a number of reasons.
The British Armed Forces left. A lot of the apparently sharp decline in the 1920s is because of that.
The First World War disproportionately affected the Protestant community. A lot were killed and a lot of the women of the era "married out" or stayed single because of the gender imbalance in young Protestant numbers during the 1920s. Combine this with Ne Temere and it has a significant impact on future generations.
Some felt uncomfortable in the new state and moved north of the border or to Britain. A programme which allowed Irish civil servants to move to the British civil service would have been a factor there as well.
There were unfortunately a small number of attacks on Protestants around the time of independence, which also encouraged some to leave. However, given the small scale and the fact it was confined to a few very specific localities, I think this tends to get overstated by some for political reasons now.
Historically, the Protestant birth rate was lower and when the Irish population was stagnant due to emigration, the fact the Protestants proportions were lowering produced a smaller community.
Ne temere meant that the children of mixed marriages were likely to be brought up catholic.
But as said above, the Protestant community is still there and numbers seem to have stabilised among the native Protestant population, while being swelled by immigration, so the future isn't as grim as it had once appeared.