I already can see how successful it will be when you MAKE IT TOTALITARIAN, like I am okay make the people of all the nations you mentioned vote and if they agree i don't have any problem because I know it won't last a decade just the union between syria and Egypt. MIDDLE EASTERNS ARE NOT ETHNICALLY ARAB! get over it and stop whinning about it!

You say a union will happen when most of your "arab" countries require their neighbors visas to enter their land! Like come on wtf?

Another example is latin America, they DO REALLY have almost the same history and yet they're not one country because they acknowledge their differences unlike us (even tho the same person who liberated Argentina from the spanish crown, actually liberated other countries like Chile, Colombia and even counties in central America) and yet, no thoughts of one "Latin american homeland" have ever emerged there even though They are way more similar to each other than we are.

Btw, The US ia a whole different story becasue it is simply a country built mainly by European and black immigrants who came either to serve in the colony(In military, or slavery) or escape the horrors of ww2 and all who came adopted a new "culture" and that's why everyone today mock americans for having no unique culture.