I think the secular progressives have come to terms with Christmas trees, since you can adorn them with secularist imagery and avoid offending anyone other than tree-huggers woth those. The Muslims accept these by associating the star with their moon god.
Nativity sets, meanwhile, have been effectively declared illegal by the ACLU, CAIR, and other Bolshevist institutions. Anyone who puts out a nativity set on their property is an admirable hero, but needs to take into account that liberals and Muslims will attempt to damage their property or kill them.
Find myself pretty much agreeing with you.