I am not sure who is trying to take taking the moral high ground. I believe that Ireland's decision making should be informed by Ireland's self-interest. As far as I can see there is no moral high ground.
A neutral country has been invaded without just cause, civilians are being deliberately slaughtered, towns and cities are being levelled, women are being raped and you think there's no moral high ground. Right, fair enough so. As a matter of interest, what exactly would it take to establish a moral high ground in your eyes?
Ireland's self interest is best served by staying as far as possible from any and all military entanglements.
I'm sure Ukraine thought that too. Problem is it's not up to Ireland. Military entanglements might not stay away from us.
Building a military defence capability would be meaningless, who would we attack? whose attack could we defend against.
As Finland has amply demonstrated, a country of our size and wealth can build a defence capability against any potential aggressor. In their case, Russia; in our case, take your pick from a range of potential aggressors.
The one attack that has occurred here recently was the cyberattack against the HSE. I would certainly like to see us improving our cyber defences. We could conceivably become world leaders in that. It is something that we might be able to do adequately, and we would not have to build a war machine to do it.
How would that world-leading cyber defence fair against an aggressor who used submarines to cut every fibre optic cable that comes into this island? As Russia, for instance, could easily do. Instead of trying to reinvent the wheel and become a world leader in cyber defence, might it not be better to cooperate with a range of countries and together build the world's leading cyber defence system. Now, if only there was an alliance of like minded democracies, led and chiefly funded by the world's richest country, which already has the best resourced IT capability, that we could join.......
Oh, wait!