Our thoughts:

It’s fanfiction, you can do literally anything.

Characters in fanfiction are like playing with dolls.

You can change anything about them.

It’s okay to change a character’s appearance, identity, sexuality, job, hobbies, relationships, timeline, universe, morals, anything.

It’s fanfiction and ideas.

You can do whatever you want.

Fanfiction cannot “take away” representation that exists because fanfiction doesn’t change the source material.

The representation is still there.

People are being silly. Fanfiction is FOR changing the canon.