Every year, Christians complain: "They are crossing Christ out of Christmas!" Actually, they aren't.
The Greek "X"
In Greek, the word for Christ is Xristos. The first letter "X" (Chi) has been used as a shorthand for "Christ" since the catacombs. Early scribes used "X" to save space on expensive parchment. Emperor Constantine put the "Chi-Rho" (XP) on his shields.
Verdict
"Xmas" literally means "Christ's Mass." It is not a secular slur. It is ancient Christian code. So, if you see it, smile. The name of Jesus is there, hidden in plain sight.
Keep Christ in Christmas. But know your Greek. MyPrayerTower app.