We don't. We celebrate the solstice and enjoy the public holiday. As far as working on Christmas Day is concerned, there are many organisations which require people to work every day - hospitals, fire brigades, police, airports, railways, bus companies, petrol stations etc - and thousands are at work.
Some of them are atheists, most of them are theists and in the west, Christians. I worked thirteen Christmas Days in a row in my job. I got paid double time for it of course as it was a public holiday.
Atheists do not go " to inhuman lengths to ban any public expressions of Christianity". We object to public money being spent on religious displays that favour one religion over another. If churches want to erect nativity scenes or religious tableaux within their grounds at their expense, no-one is going to object but to put them in a public square or park to the exclusion of other religions and at taxpayers' expense is wrong.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.