Christmas lights are a religious symbol.  They are not secular.  (But, obviously, secular people have adopted Christmas lights for their own purposes.)

In this case, you should be learning from your daughter, as _Malachi_ 4:6 says will happen. There is no reason why you should be trying to make your daughter feel comfortable with Christian practices, or feel comfortable living in America, while the perfectly-good option of moving to Israel is available.

Gd said ["Lech L'cha"](http://bible.ort.org/books/pentd2.asp?ACTION=displaypage&BOOK=1&CHAPTER=12), and the opportunity to do so is wide open.