There is a measured case for this because the current international calendar leaves too many teams without enough meaningful fixtures and a combined competition could help address that, especially for smaller nations that rarely get to test themselves properly, but once you start thinking about it you end up down a rabbit hole of travel, scheduling, player workload and whether people would even take it seriously, and then you start wondering if football is just permanently stuck in this loop where every solution creates three new problems and every governing body wants to be seen as the one that saved the game while really just making another layer of admin and commercial nonsense and before you know it you are back to arguing about FIFA, UEFA, CONCACAF and who gets to look most righteous while everyone else gets a headache