As an Irish person it kind of serves them right? Halloween is supposed to be this special, singular, liminal night when the barriers between the mundane and the supernatural are weakest, when dinner is laid out for the spirits of those that died as if you can speak to them there and then. Then the next day it's gone, and new year starts, cold and bleak at first then warming in temperature and tones.
Turning it into a month+ of commercialised spooky/sexy stuff just makes it less unique, less Halloween in every way.
I propose that a new costume night be created, in summer so people can actually wear them, and return Halloween to the darkness it belongs to.