People use "incel" as an insult on social media, to feel better about themselves. They don't have any logical argument against the person who they call that. They don't know the person. They believe you are against feminism because you cannot get laid.

There are some sexually frustrated incels in real life. A few of them are misogynists or misandrists (femcels). It's wrong to assume all incels are misogynists because misogynistic men can also get sex and or a girlfriend. Incels have a fear of rejection, depression, social anxiety, autism, and or bad social skills.

Sexual attraction between straight men and women is biological. People who use "incel" as an insult, are trying to get a reaction out of others.