I say if you like putting up lights at that time of year, then knock yourself out.Anyone who thinks you are "stealing thier holiday", or are somehow mocking/defiling a holiday or Christianity, is a complete moron. As for including your last name, just because it is an easily recognized Jewish name, doesnt really tell anyone what religion you are. I have known athiest Jews, Jewish Jews, and Christian jews, and I'm sure lots of other people know of jews who are non-religious, or not nessecarilly followers of Judaism, so I doent think most people will read much into it. Most people are either stupid, unobservant, lazy, or all 3, and are unlikely to make any connection anyways.
As for the local Florida nazi chapter, it is a legit concern, but I suspect nothing would come of it. Not sure most of those idiots can read anyways.
a possible solution for the media is when they ask your name, simply reply with your 1st name only and see if they specifically ask for a last name, and if they do, and it concerns you, just say "I'd nother not say". I doubt they will push the issue at all, or make any kind of big deal about it, it's just a human interest story about lights anyways, not some big,m important story.