FIFA made ludicrous amounts of money as a non profit running the last World Cup and want to transition to a for profit corporation to make even more.
UEFA representing the European nations with the most competitive teams and many of the biggest stars, just told them good luck running a World Cup without us.
UEFA's reach affects the remaining 3/10 and beyond. Nearly the same fraction of world cup players (68%) earn their livelihoods playing for European league teams- including many players representing non-European countries at the World Cup.