"I don't follow basketball that much, but every highlight clip I've seen of Curry is him sinking a 3-pointer from downtown and that's pretty much it"
As someone who does follow basketball that much, watching a few highlight clips is not going to give an accurate representation of a person. He is shown in highlights making so many threes because he is one of the best three point shooters of all time. That's why.
I got into an argument with my ex boyfriend about this years ago (it's actually why we broke up): I had been following the Warriors for years, he had never sat through a single game. But because he always saw Steph making threes in the highlights, he actually thought he was qualified to debate me on this. This is how you know he was a stupid person; a smart person would have said, "well I've never even watched an entire game, and you watch nearly all of them, so when you tell me Steph can do more than shoot threes, I should take your word for it." Instead, he wanted to argue. So I pulled up some stats.
He was averaging almost 31 ppg at that time, and less than 14 of those 31 points were coming from three pointers. That is a lot of missing points to make up for, for someone who only shoots threes. He was also 2nd in the league in steals at that time (this was the season where he went on to be the only unanimous league MVP ever).
You need to do a lot more than just shoot threes to win league MVP (twice).
My advice to anyone who thinks Steph only shoots threes is to watch a couple of his games. Steph restored my faith in the NBA. I am actually NOT one of the people who watches the NBA to see people "dunk on scrubs." I don't care for dunks. Steph wasn't genetically blessed with the DNA to be as athletic as someone like Lebron, but he makes up for it by having a skill level this is truly unmatched. I think he's actually part alien.