Let the cartoon do the talking.
If rejection from Wikipedia is enough to make 90% of artists give up their dreams, maybe it just wasn't meant to be. The art world (whether we're talking web media, fine art, music, etc.) is mostly rejection. I understand why it might be upsetting, but it seems unreasonable to blame their specific rejection for the destruction of someone's career. I'm not sure exactly what their guidelines are for being "note-worthy", but I'm also sure that not everyone with a website is going to make it on.
That being said, I think your style of animation is very crisp and clean looking. I think the cartoon as a whole is drawn very well, but might benefit from being longer, so you can prove your point with the cartoon itself and not a page long summary of your feelings at the end.