The video above is an interview with a researcher named William Costello who's part of a wider team of researchers taking an empirical approach to understanding incels and the problems they face. Whereas the usual pop-sci understanding of incels starts and stops with the misogyny in their communities. The empirical focus gives us better results as it reveals the mental status and situations incels themselves are dealing with and why modern upbringings are failing them.
You can find their research here and I highly recommend giving it it a look: http://www.psychstudies.co.uk/sisnet.php