Mexico would have to officially accept her as a deportee. I’m sure it’s possible, but they “can’t” just let her walk back across the border.

From what I read, the Canadian consulate can't do anything for her.

They have her in their system, and she has no rights.

I read that she was scheduled to be released (sent back to Canada) today, but I can't find any more recent news either way.

In a way it's a story only notable because she's middle class and white. These kinds of things happened routinely to people with Arabic or "Muslim" names for a disturbing amount of time after 9/11. Maher Arar being the most famous case.

It is sad that this is now a priority for so many only now that it's affecting affluent white people.

They didn't care before, and they only care now for self-preservation.