In short
A blue card is a document given to a person who was a Turkish citizen by birth and lost that citizenship with permission to renounce it, and to the descendants the statute indicates. The card is not a citizenship certificate, and the lost citizenship does not return because the card is printed. The question whether the holder's right is citizenship is not answered by looking at the colour of the card. A list of countries and a number of generations are not in this text, because status is not declared until the concrete renunciation document, the card and the population record stand together. A missing paper does not turn the card into citizenship. A guess does not fill that gap, and the relevant decision does not close it either.
The card is not a citizenship certificate
Citizenship is the status the statute recognises. A blue card is the status document in the hands of the person who lost that status. The citizenship line on the population record and the name on the card are not the same sentence. Producing the card does not make the person a citizen again, and an application form does not write that result by itself. A blue card is read as the document of a status that ended with permission to renounce citizenship, because citizenship is not declared until the concrete card, the population record and the application form stand together. A missing paper does not bring the status back. A guess does not fill that gap, and the relevant document does not close it either.
Descendants do not become citizens either
A descendant's card does not create citizenship, and who counts as a descendant is read from the statute. This text does not write a number of generations or the name of a foreign state. A list of foreign states is not set out as a condition of the card. The condition is the status of permission to renounce citizenship that the statute indicates. A document does not turn back into citizenship because a name appears on a list, because a descendant is not declared until the concrete statutory text, the card and the identity document stand together. A missing paper does not write the name of a country. A guess does not fill that gap, and the relevant register does not close it either.
The vote, public office and military service sit outside
The right to vote and to stand for election, entry into public office, and military service sit outside the area the card opens. Those three headings are not treated as completed by showing the card, and the electoral roll does not open from the card by itself. Transactions outside that are read from the document the relevant register asks for. The card does not by itself open the door of every counter, because a public right is not declared until the concrete register entry, the card and the document of office stand together. A missing paper does not create a right to vote. A guess does not fill that gap, and the relevant decision does not close it either.
The card does not open every register by itself
A bank, the land registry or another administration asking for an extra paper does not turn the card into citizenship. The paper asked for is on the list for that transaction, and loss of the card does not bring citizenship back either. Renewal is renewal of the status document. It is not restoration of the lost status. The route after a refused citizenship application is in refusal of a citizenship application, because status is not declared until the concrete renewal document, the card and the administration's letter stand together. A missing paper does not turn the loss into citizenship. A guess does not fill that gap, and the relevant register does not close it either.
There is no list of countries in this text
No table is built of which states' citizens receive the card, because the condition of the card is not the name of a country. It is a status that ended with permission to renounce citizenship. An objection to a deportation decision is a separate door, and it stands in an objection to a deportation decision. The choice of the applicable law is also in the choice of applicable law. The card does not make that choice. The fact that an office is in Çankaya does not change the administration that will handle the card, because the authority is not declared until the concrete application, the card and the administration's letter stand together. A missing paper does not make the district competent. A guess does not fill that gap, and the relevant document does not close it either.
Conclusion
A blue-card holder is not a citizen. The document is for the person whose citizenship ended with permission to renounce it, and for the descendants in the statute. The vote, public office and military service are not created with this card. The frame is on the international law page. The basis is Turkish Citizenship Law No. 5901. There is no list of countries in this text, and a register document is not put in the place of the card, because a result is not made until the concrete card, the renunciation document and the statutory record stand together. A missing paper does not open those three public rights. A guess does not fill that gap, and the relevant decision does not close it either.