Special days (or weeks or months) make me feel burdened with the expectation that I can feel some sort of way on command. You tell me to celebrate, what I feel is bad. You tell me to feel grateful, what I feel is resentful. You tell me to be respectful, I am respectful enough to keep quiet about how I feel no different from before.
If I were to organize holidays into tiers, the top tier would consist of the major holidays: Thanksgiving and Christmas. While these holidays nominally are about feeling some particular way, they are more importantly, about doing something. They are designated times for family gatherings. Family gatherings are something we want to do anyway, but we can’t do it every day, thus the holiday serves a practical purpose.
The second tier is national holidays when we get off work. A work holiday is something you do, not something you feel. You can’t take work holidays every day, there’s some value in everyone taking off work on the same day, thus the holidays serve some practical purpose. Unfortunately, many of these holidays also ask us to feel respect or reverence for something, be it veterans or labor activists, Colombus or MLK, and that doesn’t really work on me.