To YOU it might be a non issue, to me it is the start of an ugly trend.
What ugly trend? The trend that unions make demands of a company during contract negotiations and the company gives in to some of them? That has been going on since unions started and that is what happened here. Why shouldn't a worker be allowed to trade in a holiday that they don't care about in favor of a holiday that is very important to them? That just makes sense.
Christmas is a "FEDERALLY MANDATED HOLIDAY"
And why is it a federally mandated holiday? Maybe it shouldn't be. It does show favor to one religion over the others and we are supposed to have freedom of religion in this country. What if I wanted to work on Christmas because I'm not Christian, shouldn't I be allowed to?