Why? I prefer national leagues as well, but when it comes to nba type superleague or all leagues being like the bundesliga currently I prefer the former.
I prefer the later because in the end a super league won't remain a super League and will be a normal league again with very few contenders .it is just bound to happen even if we will just get few good seasons at the start
NBA is totally different ,the draft ,salary cap and the trade system makes it possible for it to happen ,and even with all of those roles many star Ally to make super teams
Nevermind the fact that there huge difference between the two sports ,football has way bigger talent pool ,popularity ,different style of plays to to put it in 1 league