Ozil is a German of Turkish descent. No matter how many Turkish fellas see him as Turkish only doesn't change that fact in the slightest bit. Why would I respect the opinion of someone who puts his culture, his national pride as the definitive thing above all else, including all other cultures?
Saying Ozil isn't German is a huge disrespect to my culture, my country and the pillars of its modern foundations. But I can deal with it, because it doesn't shake the foundations of ME as a person, let alone my believes of what's right and wrong in that context.
So, I do not have a problem with excessive national pride from the conservative Turkish side. I much rather just felt the need to clarify one thing: For the absolute majority of football fans or people in general over here, Mesut Ozil is a fellow countrymen. And the select few Germans who disagree are mostly avowing racists - let's face facts here.
A national team in any sport, to earn the very term, should always be an appropriate reflection of the country it represents. Immigration is a big part of most western democracies. Not something that works out for everyone, for sure, but definitely to be admired and further improved on.
Not all immigrants will feel strongly related to the country they settled in, there are numerous possible reasons for that - yet even if a certain someone should find one, he or she would never "stop" being German.
That said: With guys like Sahin, the Altintops, Ekici, Torun etc. in the Turkish national team - who are both Turkish and German citizens - I feel quite a strong relation to the Turkish national team. I bet in Ludenscheid, Munich, Gelsenkirchen, Hamburg and wherever town they were born and raised in, a lot of their friends and family are more than just excited whenever they play. Turks and Germans alike.
