So Rey is not an overly physical strong character but is capable and is the main character and therefor supposed to outshine the others. She has setback after setback in what she wants to do as the story (which you can read as the force) pushes her to her destiny. She is exactly the type of strong character we need and definitely not a Mary Sue.
Maybe the problem is 1) using the term “Mary Sue” 2) politicizing of the issue and 3) amateur Youtube critics.
1)As I said, I didn’t think of the term “Mary Sue” when seeing TFA, and I didn’t think Rey being good at so many things right away was because the character was a woman.
Remember that Rey being a woman has nothing to do with her being a Mary Sue. She could be Ray the male scavenger and still be called a Gary Stu. There’s certainly some sexist people who use it as a way to demean her, but for most it’s just an extension of English’s gender pronouns. If we had been speaking in Hungarian (a language where he and she are the same thing) we would use the same term. Daisy Ridly didn’t help with this by completing misinterpreting the definition.