Let me see if I got you right: you say the same people who enjoy "Fetih 1453" and "Valley of the Wolves: Iraq" are those who love AKP's pro-EU orientation?
What a lack of understanding the basics of competition.
Of course the Turkish companies would compete with every other EU companies both on the common market and outside the EU. However they would have access to the same benefits as their EU competitors. Today they don't! Today they must pay for R&D or training their workers or buying new equipment, while say an Estonian company will pay for such needs with EU funds.
Yes they do. However most of that exports are low value-added products: clothing 17.6%, automobile parts 17%, other machinery parts 13.3%, chemical semi-manufactured 8.5%, electrical machinery & parts 8.2%, textiles 7.4% - these are the largest categories for 2012.
Or I might know a thing or two because it's my job to know. Look up the detailed EU or Turkish statistics and see if I was wrong with the figures above.
Think again.
For instance Turkey had a trade deficit of about 800 million USD with Romania in 2012 (it oscillated between about 1 billion to 700 million since 2007 when Romania joined the EU). Even when it comes to steel, a low value-added item, Romania exports twice as much to Turkey than what Turkey exports to Romania. And as you aptly said, Romania is not Germany.
Why does that happen even for relatively low-added-value products? Because some costs the Romanian companies have are covered by the EU financing.
It has to do with money the Turkish companies like Enka, Gama or Tekfen can't access in spite of being among the largest construction companies in the World. Thus they would push hard whoever is in the government to speed up Turkey's ascension to the EU.
Because membership would happen after the Armenian and Kurdish dossiers are closed to EU's satisfaction, the border with Greece is settled to Greece's satisfaction (tough luck, they are in the EU so their opinion on the matter weights more) and the Turkish army is out of Northern Cyprus, among other things.