Only some bits (places I never felt all that safe in either), there are just times it gets very ott (paddys day and "the 12th" are the main two) and as an english man I found it so weird that the left overs from the 12th were left for weeks when paddys stuff was down and in the bin 9am the next day.
Just an annoying inconsistency towards symbolism that should really be addressed.
From my experience, the areas where any symbolism is quickly removed tend to be "neutral" areas for instance town where most of the st patricks day celebrations happen. While most of the marching is done in protestant areas and as such the symbolism is left (again this is only from my experience)