Well, if you join a church from Egypt where most people are Egyptians, they are going to act like Egyptians, and you better learn to at least like kofta and umm 'ali.
It's really no different than if you go to a Catholic parish where the majority are Hispanic and you're not, the tortillas will probably go faster in the banquet hall than the hotdogs. None of this is a reason not to join the Church that you are convinced has the true faith.
Believe me, as the only non-Egyptian who regularly attends the church here in Albuquerque, I can definitely relate to the cultural alienation. I'll never be Egyptian, and I don't want to be. That's not what matters anyway. Yesterday I spent about an hour tutoring the children of one of the parishioners in math and vocabulary (2nd and 3rd grade, thank God, or I'd have really looked like a fool with some of the math questions!), and one of them was very, very excited to tell me about how she had made a card by hand for her grandmother (another regular member of the church) by looking up on Google how to write "Happy Birthday" in Arabic. It was heartwarming, really.
Granted, today those kids are 7 and 8 years old, but in another 10 years we'll have two young Egyptian-Americans who are in a church that does the majority of its liturgy in English (which is already the case today), who will probably bring friends to church with them of all kinds of backgrounds. It is important to remember that with the exception of the Armenians (who have their own special challenges related to the genocide that have led them to focus on their own people first and foremost), there is hardly any OO church in the west that is older than the 1960s. So the cultural identification with the church is still very, very strong. I pray that it won't weaken (as this is the natural place to be an Egyptian, Syrian, etc. Christian; better to be Orthodox than Catholic or Protestant!), but I also pray that it will change
, naturally, as befits the organic development by which the church has always baptized the surrounding culture into the saving life of Jesus Christ. There are already signs that this is happening in the Coptic Church, anyway (non-Egyptian converts among the priests, monks, etc). Long may it continue, wisely guided away from any Protestantizations (a common complaint against the missionary parishes in some areas; sometimes I can see why, but other times it seems like some people are just grumpy) and towards a truly Orthodox expression of the faith of all the Christian people of the world.