Legitimate and legal marriage is probably the most common way American women obtain residency in other countries (see Start here: The Myth that Americans Can Easily Move Abroad – Coldstreams Travel and Global Thinking). Conversely, American men who marry a foreign woman usually move to the U.S. (The pattern is that women tend to relocate to where their male partner is from.)
In this example, a American woman boasts she married a Gaza man so he can live in the U.S.: Exclusive | Far-left teacher married Gaza man to give him US citizenship – read the whole story to see why this looks like fraud.