Is unionism more nationalist then Irish nationalism?

Here’s one to ponder this bank holiday weekend.

Is Unionism now more nationalist then Irish Nationalism?

Here are a couple of areas in which I think this is arguably so.

1- Attitude to currency. All nationalist parties support the Euro even though it led to the loss of an Irish national currency

2- Attitude to Europe. All nationalist parties support Europe even though it has impacted on Irish economic and political sovereignty

What do you think?