The training system for potential airline pilots in the USA is somewhat different from that in UK and Europe. Most airline wannabes in the States are required to obtain a four-year degree, usually in an aviation-related topic. A number of establishments exist to satisfy this demand, but the existence of something like 10,000 furloughed experienced pilots in the US has seriously depressed the pilot recruiting market. And that at a time when entry-level salaries are pathetic at best.
However, before any of the above becomes relevant you would need the right to live and work in the USA. That is very difficult to get if you do not have US nationality.
Scroggs