I am making no assumptions. I simply like the name. Whether or not other people believe in the devil is largely irrelevant.To share a name with someone is not to actually be that person.
As for people who would not even utter the name - that is funny. I would sincerely hope my DC would have nothing to do with such people. It has, however, given me an idea for a third name - Voldemort! Yes, that IS a joke.
Sadly, I suspect you are wrong about the competing strengths of Lucifer and Damien as cultural references. Declining church attendences coupled with poor religious education in schools may well mean that the potency of a Hollywood franchise is more influential.
As for making a point about religion - I really couldn't care less. I have no religious beliefs but my DH does. DD attends a church school because I'm open-minded enough to see that it's something which is important to him. For the record, he likes the name Lucifer, too.
Quite clearly the name is generally disliked on this forum. I'm sure I'll manage to live with that. It's unfortunate, though, that despite stating that it's unlikely that I'll use the name, most of the comments have concentrated on it.
So, if we can take it as read that nobody else likes Lucifer, I'm interested in opinions on my other name choices. Thanks.