While it is true that Hashem can give you your livelihood wherever you move, consider:

One cannot put conditions on Hashem where Hashem must give him his livelihood. If you are needed in a city where you are more helpful to the people to bring them closer to Torah and Mitzvos, then Hashem owes you all the blessings many times more. https://www.torahrecordings.com/rebbe/igroskodesh/011/008/3432