What a curious greeting, don't you agree? Since when does a season greet anyone? And why should we have "seasons greetings" in winter and not at the start of, say, spring or, at least, summer! I suppose we are all thankful and a bit unconsciously surprised that the seasons continue despite all of the evil in the world, including in me and in you.
Merry Christmas! May Christ have mercy on all of us, unwelcoming and ungrateful as we are at His coming into the world.
Christ, in coming to the cold, dark world, brought us God to do with Him as we would!
"He came to His own and His own rejected Him. But to as many as received Him He gave the power of becoming sons of God..." (John 1:11-12)
The world prefers the senselessness of "Seasons Greetings" to the Wisdom and the Power and the Love of Christ! Christ is the reason for every Season! Acknowledge Him! Become a son of God.