Does not the cabbage too have political significance, for some? What about Cabbage Town in Toronto, founded by poor immigrants, many of them Irish, who got by largely on the cabbages that they grew in their gardens.
In NI tho what's needed is real "parity of esteem". There are two cultural traditions, both equally valid, and each, ideally, should tolerate the symbols of the other. The Union is firmly tied up in the Belfast Agreement, the rest is propaganda skirmishing around the edges. I appreciate that is what Jim Wells of the DUP is about.
There will never be real peace in NI until I, or you, can can on Derry's Walls and sing "Derry's Walls" and go into east Belfast and sing "Sean South of Garryowen" without being assaulted. "Naive" Ard, maybe, maybe not.