How would you feel if Sadie Sink actually is Mary-Jane Watson?

Sadie Sink's role in BND is being kept under wraps, which has fueled a ton of theories, especially because she looks like comic-accurate Mary-Jane Watson, which wouldn't be an issue, except we already have an MJ in this universe.

But let's say for a second - she IS Mary-Jane Watson, how would you personally feel about that? Because I personally wouldn't mind, though I would need them to explain it for me to fully be on board with it! But I wouldn't mind!