Here is a good reason why Turkey should be split up ..... It was originally, geologically, fragments which came together ....
Present-day Turkey is sited on the Alpine–Himalayan collisional
belt and occupies a zone of convergence between two
major plates, Eurasia and Afro-Arabia. The Anatolian region
has been formed by the amalgamation of smaller continental
fragments that were formerly sited at the northern margin of
Gondwana during late Palaeozoic and early Mesozoic times.
These blocks are generally considered to have moved across a
Palaeotethys Ocean with a new ocean (Neotethys) opening in
their wake (Sqengor & Yýlmaz 1981; Robertson et al. 1996).
Neotethys began to close during Late Cretaceous times with
subduction leading to the accretion of continental fragments
along the Eurasian margin by Eocene time. The present
framework of Anatolia was largely attained by Mid-Miocene
time following collision of Arabia with this terrane collage
along the Bitlis Suture Zone.
Journal of the Geological Society Vol. 159, 2002,
O. TATAR et al.