Why is draco malfoy so rude (he's from harry potter)

He is so rude because he is probably jealous of Harry, because Harry is more popular and powerful than him.

i feel like draco is rude because when he wanted to be friends with harry in the first book and harry was like um no your kinda rude and i can find friends on my own i feel like draco was like excuse me you must not know who i am and draco really thinks he's all that