If you don't like Christmas trees, don't have one.
Just this morning, I was at the United Red Carpet Lounge at DIA (Denver). Beautiful Christmas trees and decorations. Last night I was at Ted Stevens Airport (Anchorage, AK) The whole airport had wonderful Christmas decorations. Lots of stuffed polar and Kodiak bears there, too. PETA and the ACLU would be horrified............I loved it.
Too many people are just looking for an reason to be offended.