Lemme just start by saying the first Doctor Strange is my favorite marvel move of all time. It has percect pacing, story, well written characters with good motivations, amazing fights and visuals, brilliant themes, superb acting, good villains, and doesn't require you to have seen every other marvel movie ine existence to know what's happening.
This movie takes what made the first one good and poops all over it. The motivations of the hero (strange) and villain (wanda) aren't real enough, and reduced both their characters significantly. Wanda in particular is an obnoxious character here completely unjustified and any sympathy goes out the window as she goes from one genocide to the next for children that aren't even hers. It's ridiculous and doesn't even maje for a fun villain to watch fight because she just solos everything instantly.
The writing is lazy and poor. We get no explanation for America's powers or why she cab do it, we just see its there and have ti accept it--a recurring theme of the movie. Also the post credit scene in the previous film with Mordo just gets glossed over in a 5 second dialogue bit. Why wasn't thag covered?
I really wish Marvel stuck to their roots and created good stories without trying to get too flashy or cute, but clearly they can't make things big AND well made anymore. Shame because this was one of the biggest disappointments ive ever seen.