I see your point, but still cannot see Xmas as a spiritually clean celebration as long as it has trees, yule logs, santa, and is celebrated during saturnalia.
Why not make the effort to actually study the Bible and design a celebration based on Biblical accuracy instead of pagan traditions and lies?
I would be hard pressed to find anything not previously used by someone. But what if our customs have been tainted: they are redeemed in Christ, just as we ourselves are redeemed. I do not worship my greenery nor my candlelight, nor do I see it as a symbol of some pagan deity: rather, greenery I bring in as a symbol of my Lord's triumphant life, even through the winter of sin's gloom, and the candle as a symbol of His triumphant light, scattering all the darkness of death. Certainly, evergreens and candles have been misused: but does this mean I must reject them as evil? No! They were made by God, and even if they had nothing symbolic at all, and served no other purpose than to look nice, I would still bring them in my house and give God thanks for their loveliness.
And some things are hardly pagan at all: Santa, for one, who, while taken to extremes by an unbelieving world eager for something that seems to dissasociate with the holiday's true significance, still embodies the generosity and eagerness to give all believers are to have. Oh, you might come up with some dim association with Nimrod or some other figure: but what element of our faith can you not do that too?
But, I will say, if you choose, for matters of conscience, to not celebrate this season, I say all the power to you. It takes a firm conscience, though I doubt its wisdom, to "resist". I hope you do not swear off all celebration, even if you disagree on the time and mode (which is quite all right)- for we have all the reason to celebrate and be joyful!