re: #477 philosophus invidius
Then you can celebrate in your religious way, and others can adopt the elements that they like and celebrate as they like. Secular holidays unify the country in subtle ways. And holidays made up from scratch don’t work (see kwanzaa). Only holidays with traditions built over time feel authentic. Those holidays are mostly of religious origin, but the traditions are mostly not particularly religious.
If I was a Christian, I wouldn’t want anyone adopting my religious holiday in just anyway they like. I would want to protect my holiday and everything it means.