First of all, When Kurds were Gassed by Saddam there was a Conference of Islamic COuntries, at that conference they mentioned every bloody muslim in every corner of the world that they beleived was being oppressed somehow or another. But NO ONE ( NOT ONE ISLAMIC COUNTRY) mentioned the killing of Kurds. If this does not prove that Islam is simply a manifestation of Arab nationalism than I am not sure what is. Otherwise, since Kurds are predominatly muslim, there needed to be some protest at the treatment of 'fellow Muslim Brothers' (oh I must not forget, Sisters as well)
As you said it is a union of Islamic countries. All countries are political entities with specific purposes, not a council of religious representatives.
I am sure they did not submit any resolutions about Checenya or Uyghur Turks or many others.
Furthermore, if Islam has nothing to do with Arap nationalism then why the hell are you required to pray in Arabic, is your God unable to understand any other language? Why can't muslim Kurds pray in Kurdish? I do believe the day will come when Muslim Kurds will pray in Kurdish, however untill that day, attempting to differentiate between Arap nationalism and Islam can not be taken seriously?
You can pray in Kurdish if you want. People pray in turkish in Turkey although no Turk bothers to show up to pray.
And even if we do overcome Arab nationalism and create a new interpretation of Islam from a Kurdish perspective, we still need to question and get rid of many anachronistic beliefs and values advocated in Islam. Please do not give me the bullshit that some how I do not understand Islam. Islam is, what the Islamic sources say it is. Believe it or not many values and beliefs expressed in Islamic sources is very primitive. THere is no way of creating a modern society with demoncrratic values without questioning and discarding such values. Democratic society does not simply mean having an election every few years. Democratic society is characterized by a way of life that fundamentally contradicts Islamic belief in the absolute authority of Quran. Now you might say that it is similar to Christianity. I will agree. However, the CHristians forced the church to retreat several hundred years ago. Muslims have not achieved such a thing. First of all Mosque's must be forced to retreat from having total control over social and political life. Only then will there be a move towards democracy in the Muslim world. And that will only come with critical self reflection that is dangerously absent in the Islamic societies.
A good place to start would be to stop putting out Fatwahs here and there every time someone expresses some views that contradict Islam. So in short, go look at the mirror for a very long time, by all means continue to believe in God and worship him all you like ( the poor guy needs people like you to worship him, otherwise his life becomes meaningless) however, if you want people to respect your religion then demonstrate through practice what kind of positive contribution Islam can provide for humanity. I don't believe there is any, but I could be wrong, Prove me wrong.
Secondly you seem to confuse Islam with Christianity. Islam does not have a central religous authority like Christianity. If you want to change Islam try changing yourself not by degrading any religion. If people change, religion cahnges too. Besides, do not be stupid to believe that religion would change in a trival society no matter if it is kurdish or arabic. Tribal leaders need religion to control people, be it christianity or islam.
Lastly, I am not a devout muslim or any expert on religion. But I can not stand poeple blaming all thing they do not like about their poeple on a religion.