Ultimately, these men hate these women but also covet them. They have nothing but contempt and hatred for all women, including those women who fit their exacting standards of beauty: blond, trim, and white, and very, very young. In fact, the younger the better since their age limit on women who are useless to them keeps getting lowered every year. It used to 30, lowered to 25, and now the optimum age is 18.
They want beautiful women to throw themselves at them. They get told who and what they have to be like to attract the type of "stacy" they want but not only are they unwilling to do the work to attract them, have nothing but contempt for these women's requirements in a man. There are plenty of lonely women looking for good men. They could become the type of men these women think are attractive, but don't want to have to do any of that, and spend all their time wanting sex from women who show no interest in them, and denigrating women who don't fit their standards of beauty!
And since these men also hate themselves any women who would choose them is automatically considered a slut and/or suspect. They would only have hatred and contempt for any woman who would choose them.
https://www.vox.com/2018/4/28/17290256/incel-chad-stacy-becky
https://www.bbc.com/news/blogs-trending-44053828
https://www.newyorker.com/culture/cultural-comment/the-rage-of-the-incels