Oh, it's so nice you've seen the country from a car. A manufactured experience professionally landscaped by traffic engineers observed from within a machine those engineers are employed to promote taught you all you need to know about a country.

Ireland is almost empty of wilderness and has scant backcountry. Even the mountain ranges have a very few trails backed by industrial tree farms. Most of the supposed forest left is so tightly controlled that the wave pattern of regularity produces moire patterns in the trees. All the life, nature and interest is squeezed out.

There's certainly no place left to seek extended solitude or homestead cheap land. The youth of the countryside are leaving or escaping to cities. I'm glad the nearly-indoor controlled experience of the roads was nice for you, but Ireland is full and bursting at the seams. More people will only make it worse.