Shaykh bin Baz (rahimahullah) said regarding the evils of nationalism, "Indeed, Islaam has forbidden the calls of the Days of Ignorance (jaahiliyyah). There are many textual evidences that forbid all of the characteristics and deeds of these times of Ignorance, except for those (good) practices, which Islaam has condoned. And from that which there is no doubt of, is that the call to NATIONALISM is indeed one of these calls of Jaahiliyyah. This is because nationalism is a call to something other than Islaam and a support for something other than the truth. And how many crimes, evils and severe wars has such calls of Jaahiliyyah brought about upon the people, causing great harm to their souls, their wealth and their possessions. The consequences of such calls was a break in their (Muslim) unity, a harvesting of Enmity and Hatred for one another, in their hearts, and a splitting between them into tribes and nations!" (Taken from one of his beneficial books Naqd Al-Qawmiyyat-ul- ‘Arabiyyah (pp.39-44), which is a treatise refuting Arab nationalism.)
[both of these were taken from taraummomar.blogspot.com]
As a revert from America, I really don't understand the whole Nationalism thing. I mean yeah, America is cool and all, but I wouldn't ever consider someone a higher priority in my life just because they are from here or from my culture.
I see this kind of behavior a lot in Muslims that I have met. They want to marry someone from their "motherland." These people are Pakistani, African, Arab, Indian, you name it we got it. While I understand that it is good to keep your culture intact, I think that our MOST important and COMMON culture should be Islam, right? Isn't Islam what is most important to us all?
If we say that some people aren't eligible for us because they aren't from our culture or nation, isn't this making forbidden what Allah subhanu wa ta'ala made lawful for us? Isn't it true that we can pick spouses from all of the believers and that we are only different in levels of piety?
I think that nationalism is just a poor excuse for racism. A cover up. A sham.
Anyway just a thought...