The Incels aren't right. Being able to connect with another human being is ALWAYS attractive. It's never NOT attractive.
The fact is, they're what's holding them back. They don't know themselves, they don't see other people, they're narcissists, they all have a chip on their shoulder from constantly comparing what they have/don't have/how they rank up, they're cheap (not talking about financial matters and things) in regards to the level of energy they're willing to invest in other people, and they reek of entitlement. The whole reason they're so perpetually pissed isnbecause they believe they're not getting what they deserve, what they're owed.
And every bit of that is blasted at shrieking volume at whatever poor girl they aim their entitlement at, looking to get served.