It gets more materialist the more Christians opt out, in the absence of any better contextualisation.
As I say, you don’t have to participate, but it is now the second-biggest holiday in the country, bigger than Independence Day now in terms of holiday-specific observance by the population and consumption. Christians need to show up, or be left out of the conversation.
I say that all Christians “need” to do is to love God and be good neighbors...this will keep their seat reservation in the “conversation”.