The 'Forever alone' meme was originally a jab at oneself for having few partners; it didn't imply anything about one's mindset or opinion on others, nor an opinion on society as a whole. It was also used mostly in an ironic sense. I'm saying that the meme has nothing to do with the 'incel' movement, unless you want to throw in every online expression of loneliness as incel stuff.

Some namesakes remain, for example Reddit's r/ForeverAloneDating where people who haven't had much experience (if any) can make posts to solicit potential e-dates. Although the balance is skewed toward men, there are a good number of women posting there too, and it has nothing to do with incel/blackpill crap.