I thought "a watcher" was being sarcastic the first time....
Anyway, I would simply suggest that if anyone feels friendless in the congregation, it's because there's little that we are guaranteed to have in common with the assorted ones there. Even the personalities attracted to the organization are not all identical, with motivations ranging from "end-times paranoiac" to "high-horse rider" to "warm and fuzzy hugger" to "(faux) intellectual Bible scholar".
As someone whose interests are not mainstream myself, I have known only a few brothers who shared one interest or two with me. But I wouldn't expect much different results with a random assortment of non-Witnesses. Then again, some of the things we like in the entertainment world are borderline or "un-Christian", so doesn't that also limit the subjects we can discuss with them?