I'm talking about both groups, I guess? I was raised evangelical, and a lot of those types could be called 'aspirationally jewish', or at least have a reverence for Jews and Judaism that is, in my opinion, unbiblical.

But I've met Jews for Jesus type converts, and while I was too young at the time to ask properly phrased questions to grasp just how much of their religious and cultural practices came from rabbinic/pharisaical Judaism, I know that they, at least, celebrated Hanukah, in addition to Christmas, so they had some cultural observances that weren't from "Old Testament Judaism".