The original with Crowder implied his mind couldn't be changed because Crowder is a fucking idiot who refuses to listen to anyone but himself.
This one implies a willingness to listen and learn. Calvin was impulsive sure, but there were plenty of times he regretted his actions and wanted to learn from his mistakes. He is just an innocent child, after all.
The original one said something like "Thanksgiving isn't racist, change my mind," which is like... Not a thing that anybody says. The way Thanksgiving is taught to American kids is racist and full of revisionist history, but not even the ideal reddit caricature of an SJW would go around telling everyone that eating a turkey and mashed potatoes makes you racist. It was like inviting people to dEbAtE him on an issue that people aren't really even trying to make, so he'd get to sit there like a smug asshole without having to do anything.
Edit: I remembered the wrong slogan, the original sign said something else. The Thanksgiving bit was from a video he did, iirc the title used the same "change my mind" naming convention.
Reddit hitting me with a permaban for an arbitrary reason was a strong factor. I was getting tired of how toxic the site was anyway, so, eh we're good.
Yeah, I know I'd seen the original meme format around for years before I ever actually learned who Steven Crowder was lol. I imagine most people who post the memes don't know either, or at the very least they're not trying to promote him or anything, but it gets a little hard to unsee once you become aware of it.
The worst part is that people don't even use the format right. They just put correct opinions on it, completely disregarding the context of the template