POBCOB
It’s not all about Brexit but about ancestry and continuing the long Irish heritage that some people have. I was British and Irish from the moment I was born and did not wait for a situation such as Brexit to come along to prove it. Whatever you see as privileges that rightly belong to me will not be surrendered because of the Brexit vote but will continue along my family line hopefully for many generations to come. Not everyone jumped on the Brexit wagon to gain an additional European passport but if they did then they must also have had the right to do so.
What on earth does your passport have to do with your family line or heritage? I speak as a keen family historian! Your passport relates to you as a person and should have nothing to do with your family history.


