generally, if some people don't like you it's a warning to others to also stay away, as there must be something wrong with you. you have a bad character, or are dangerous for some reason. this is also apparent in interactions with others, as they have been undersocialised and make more mistakes than others who have normal social relations with their friends and families. i think the bigger problem is that many of these incels seem to have no one. they can't only not find a girlfriend, they can't find friends. and no matter how ugly you are, if you have otherwise had normal social development and love, you should be able to make and retain friends. i think often it is a symptom of a bigger issue of not learning correct social relationships, including receiving love and respect, from your own parents and siblings. at that point, while it's not impossible to recover from this, it's made harder again by others picking up on this and not wanting to be your first/only source of truly loving and mutually respectful socialisation, because they fear you will become dependent upon them. that's assuming you meet people who are well socialised themselves, and don't have their own problems that will compound. we all just need to be a little more nicer to each other.
United Kingdom