There's nobody press-ganging anybody into applying for an Irish passport. It is fairly easy procedure and a way round many problems of British expats living in Spain. You don't have to give up supporting England in the Euro Championship. You don't even have to drink Guinness (comes in full pints too!). The amount of British citizens claiming Irish passports currently can be measured in thousands. Many of them probably never set foot in Ireland. A simple way of looking at this is backing two horses (joint favourites) in a two horse race. I know one thing, if Ireland voted to leave the EU and the UK was remaining, I would be applying for a UK passport. I think I would be stupid not to. But, if you don't think an Irish passport is for you, no problem for us, but save us the tears when the starting gate door in Alicante airport doesn't open for you.
OK! Immigration was not the only issue on show for the Brexit referendum. Try and tell that to the immigration population of the UK. But, we all know, there is no racism in the UK. Ask any Asian, African, South American, Eastern European, Spaniard or Paddy.