Rogue [Anna Paquin], as amazingly powerful as she is, ...

Rogue [Anna Paquin], as amazingly powerful as she is, lives a potentially very lonely life. Never being able to touch anyone, never being able to have a physical relationship, never able to have children. Now, as politically abhorrent as something like the cure is, it's also humanely, socially, incredibly understandable that a character like that would take it.