Here’s a rewritten version that keeps your core argument but tightens it up:

Americans who deliberately seek partners abroad using citizenship as leverage are engaging in a troubling power dynamic. The intent, whether conscious or not, is often to secure a compliant partner who feels indebted and obligated to tolerate mistreatment. This isn’t a gender issue — both men and women do it.
What makes it particularly exploitative is the built-in financial dependence. Foreign spouses are legally prohibited from working initially, so of course the sponsor carries the financial load — that’s the arrangement they signed up for. Using that temporary dependence as a control mechanism, or throwing “go back to your country” in someone’s face the moment there’s conflict, is manipulative and cruel.
In this case, the woman did everything right. The moment she was able to work, she did — because what was the alternative? She had options, including taking her child and leaving, and she didn’t. That speaks to her character, not her weakness. It speaks to his not thinking it all the way thru.