If you don't like the laws, change them. It's really pretty straightforward. We live in a democratic republic where these processes are well defined and understood broadly.

When the people our society has charged to enforce our laws enforce the law, that's a good outcome; if they didn't, that'd be literally unjust.

I don't know this woman, but it seems pretty stupid of her to leave the country which she is illegally inhabiting and then be surprised when she's not allowed to re-enter. Play stupid games, win stupid prizes.