ELI5? What are the factors and implications?

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.

There is no World Cup without UEFA.

UEFA is Europe basically. So like the nexus of modern football

7/10 of the currently top ranked national teams are UEFA members.

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.

An even funnier fact is that players who play for clubs in Europe (UEFA) won't be allowed to represent their countries.