Its an interesting one...and i totally understand the reasons for wanting it stopped/cancelled. However i think if you look at the context of whats happening (decade of centenaries) and what Varadkar said, its about recognising "our" history....it isnt (meant) to be about celebrating the Black and Tans, more about recognising they existed...where we are now...and what may come in the near future (unification). In the North we are a good example of how we must recognise all sides of what has happened before.....its clearly different in the Republic in that its not a 50/50 split....but if we as the island of Ireland are to move towards a potential reunification or at least to seriously consider it, then people in RoI need to become a bit more open to recognising and accepting those parts of history they dont like
Hope that makes sense!