I've never met a "femcel" - as in a woman with poor social skills who stays inside and games a lot, perhaps lacking optimism about their romantic prospects and overall destiny - in my life so the whole concept did strike me as weird. Seeing the "femcel" subreddits, twitter pages and Instagram pages, all it reminded me of were the toxic girls from my hometown who essentially scared off new prospects by being so rude to them and CLEARLY chose their lifestyle very early on.
I therefore think femcel is a misnomer. I think generally women aren't getting hung up on men in an incel-ly way - the ones that do skip straight to stalker serial killer lady - I think women are good at socialising and always have some sort of support system.