Ya know, Calvin really has more in common with Crowder than you might think.

They obviously both childish. They're fundamentally selfish beings. They have incredibly vivid imaginations, but they only ever use them to amuse themselves and reinforce their delusion that they're the most important person. They believe themselves to be rebels against a banal and suffocating system, but in reality they're just irritating little shits, constantly acting upon every rogue impulse of their raging ego and id, with no regard for how they're making life hard for the people who have to live near them.