Think you missed the point....the aim here is to end international football and governance by bodies such as the FA, and replace it with expanded European club football.
No it isn't. Read the article again and the background to it.
Clubs aren't happy with; an extended international calendar, not receiving any of the money from internationals and having no insurance cover for players on international duty other than what they pay for. They're not looking to end international football, merely swing things in their favour.
To be fair they have a point. International football generates massive revenue, why can't UEFA / FIFA and the national associations pay for insurance? Some do but most (especially the poorer associations) don't. The scheduling of international football has become a joke, especially the African Nations Cup.
It wouldn't be the end of the World Cup either. It would just be someone else organising it.