Rage comics can be copyrighted. If the creator of a specific rage comic has taken steps to register it for copyright protection, then it is copyrighted.
Rage comics aren't typically considered a form of kidding. They're a unique way of communicating a wide range of human experiences and reactions through simple, exaggerated images and text.
Well, to make rage comics, first you need to have a concept in mind. Then search for suitable templates or create your own basic drawings. Put in expressive text that conveys the humor or message. Also, pay attention to the layout and sequencing of the panels for better flow.
Rage comics are indeed memes. They were a form of visual communication that spread widely on the internet and had a distinct style that people recognized and shared.