The EU and America seen Ireland as an ideal location for their companies.
Exactly. It has been an ideal location for their companies because you have been
an EU member. All that investment from America and Europe came to your country
because you have been in the common trade area with a huge EU market.
They wouldn't even bother investing all that huge money in a 3,7 million country
if you weren't a part of EU (which is quite obvious if you look at Ireland before
1973 - why didn't they invest all that money when you weren't an EU member?).
It was foreign investment.
Not only. From the EU structural funds alone you've received over 17 billion euro,
not to mention the funds for farming and other EU programs that were vital in
creating the "Celtic Tiger" economy.