Regardless of whether a 10% salary cut is more than offset by a decrease in cost of living, the idea of an established employee, whose labor output you already

Regardless of whether a 10% salary cut is more than offset by a decrease in cost of living, the idea of an established employee, whose labor output you already currently value at their current total comp level, being paid less solely because they translate on the surface of the earth to a new coordinate is insulting and ridiculous. They aren’t suddenly less valuable to you. Their impact on revenue hasn’t suddenly changed. I would never accept such a deal. Whether I am moving to a lower cost of living area or not, that is my business and none of my employer’s business. My employer and I have an agreement about my pay based on how they value my labor and how I value my time. I am looking for raises not cuts. And raises are a function of my impact on revenue. Whether I live in Manhattan or Madison utterly plays no role in this, full stop. This very likely would be a reason to leave a company, or never consider working for them in the first place.