(Anthy and Utena are about to kiss) An interpretation of any character as 100% straight when that character is not explicitly stated to be 100% straight is no more valid than anyone’s interpretation of the character as queer.
There are many queer orientations, so “not queer” is hard to prove.
(Anthy and Utena kiss just off screen) Straight Until Proven Otherwise? A faulty and problematic approach.
Anthy and Utena used because wow does it say something about this attitude when the two lead women make out in the credits and the movie retelling yet people still claim they don’t have crushes on each other in the show.