Church is where we worship God. Granted, the temple of the Holy Spirit is know within us (as believers), were not the tabernacle, temple, etc.. places set up to worship God also (in addition to pointing to Christ)? If so, can you imagine this kind of non-sense being done in these places?
Also, for some thought and opinions...
Remember in Exodus 32, as Moses comes down the Mnt. and Aaron is down playing with the Israelites. The Israelites where left without Moses and Aaron decided to make a golden calf from their jewelry. The make the idol and worship it, then Aaron said in v.5 "Tomorrow there will be a festival to the LORD." (NIV)
Why was Aaron wanting to mix idolitry with a festival to Yahweh? What was God's feelings on this matter? I think His anger BURNED against the Israelites!
Is this what we are doing as we mix idols/paganism/etc.. (Santa, Easter Bunny, NASCAR, etc) with the things of God?