I remember when that happened, many people publicly predicted it would lead to the situation seen today.
2001: Seattle to Chicago: https://www.kiro7.com/news/local/on-this-day-boeing-moves-co...
2022: Chicago to Washington, DC area: https://www.seattletimes.com/business/boeing-aerospace/boein...
2024: Back to Seattle (maybe just the CEO and not the whole office): https://www.reuters.com/business/aerospace-defense/new-boein...