If I'm not giving their secular names, how am I naming after them directly anyway? It's just a gesture. And they're good people. Why can't I give a small nod to the good non Jews who I wouldn't be here without?
Some names might be Biblical.
I get you. I've met so many people from other backgrounds who are we they are not in spite of but because of their families, etc. I still think it's something to discuss with a knowledgeable mentor.
