>Ireland is a tax haven though?
For select megacorps that have the luxury of being in a business that lets them structure themselves that way, sure.
For the laboring peasantry it's a very different story (though the actual rates vary, this goes for most "tax havens"). Ireland in particular has a high VAT so if you spend a lot of your income on consumption (which most individuals do) you will get very screwed by that.
