It's not because TRNC is actively fighting against it. It's because they (somewhat similar to Taiwan) can't enter into international agreements due to limited recognition.
If/when enough bad money has moved to TRNC and it becomes a higher profile jurisdiction, the likes of OECD, FATF-GAFI, and Moneyval will simply pressure Turkey and Turkish banks to report on behalf of TRNC banks since that's how TRNC banks are effectively connected to the outside world. What are they going to do? Say no and risk losing access to︀ USD, EUR, and other international currencies? The Turkish economy is already in a terrible state.︁
Assuming you have tried all legal︄ avenues (suing the government, suing the tax authority, et cetera) and been unsuccessful, the smarter︅ thing to do would be to relocate to another country first, rather than to become︆ a tax evader and money launderer.