In the midst of this, the season of goodwill, it seems to me that an unfortunate chance for discrimination and exclusion exists in the Christmas card sending dynamic. That is, one person out of a whole group being excluded from those to whom an individual gives cards to, within for example a workplace. Or supposing for example you're still at school, a class etc.
It's a covert way in which individuals show discrimination, exclusion and inequality, especially given the time of year. Discrimination/exclusion/inequality, essentially, from a person's wishes to others of a merry Christmas. And it's something I've noticed at times, and I see it definitely exists in my workplace.