I mean the premise is flawed. The "neckbeards" are not intrinsically unlovable but they are getting duped into being annoying and problematic to people.
When you treat the attention of any kind of people as a status symbol or a commodity to use for bragging rights or prestige for others it's not exactly fair to the people whom you are essentially using. You see the same principle with famous people. Being in any kind of relationship with someone, even friends, soley because you like what their association does for your image is a jerk thing to do
The people who do the mocking are every bit at fault for being assholes. Only when the person being mocked accepts the assholes premise as true and care about their acceptance do they also become an asshole in turn.