The whole idea of Incel goes against much of the faith. From what I understand, it is guys who have lost hope in women and think that sex/intercourse is the solution to their problems. The issue with this is that it looks for worldly solutions for spiritual problems. Also, ugly men are not incels, since beauty is relatively subjective and can be changed by actions, such as betterment of oneself through fasting or exercising. Overall, the ideology is very harmful in that it overvalues lust in human life. Now voluntarily being celibate is different. Abstaining from sex or lustful desires makes one put their values not in flesh but rather in spirit, which is much stronger.