You have watched too much deep state videos. La LI Lu Le Lo. If you're believing everything you say then you must believe all other conspiracy theories too.
So if you where president of turkey what should they do tell me your point.
None of those are conspiracy theories, both Yilmaz and Ecevit acknowledged that the JITEM exist. That's it, there are no secrets beyond JITEM.
BTW, your whole "everyone wants Turkey, everyone wants to destroy Turkey" paranoia is the actual conspiracy thing. No, US does not want to do anything with Turkey, no, nobody abroad funds PKK. There's no evidence of a global plot to exterminate Turkish state, it's just classic Turkish coffee shop talk, people despise US in Turkey so it's natural such things are on people's minds. They buy their guns just like any other rebel group from Russian gunmakers (AK-47 mostly, Kurds call it "Keles") and the money they have they earn it illegally by selling drugs and smuggling. Yes, they are smugglers and they always admit that. A petty criminal organization, that's all.
The US funds YPG against ISIL though, so does Russia. They are not recognized as terrorist organization by anyone but Turkey and Qatar.
Do turkish people (regular citizens) believe in the deep state?
Former prime minister Bülent Ecevit formally acknowledged them in 1977 and was victim of an assassination attempt later on. He called them counter guerilla in the public.
Are turkish government officials claiming that the deep state has been destroyed with the ergenekon arrests?
I never heard about them funding PKK (though I have heard they supplied them with weapons in the 80s though), do you have any reputable information about it?
You can pm me if you want.
Well, there's no "regular" Turkish citizens, as the country is super polarized right now. But as I said before, there are no secrets anymore, everything is in broad daylight. Those who can see their countries past know all of this, those who can't don't care.
Ecevit and Ozal were the only ones outside all of these bullshit and they were not afraid to talk about it. Ozal was assassinated successfully and Ecevit barely escaped. Long story short, just like every European country in that time, Turkey was a war zone against communism and counter-guerilla and PKK were just two of the scapegoats.
But nobody knows if they're really gone as Erdogan only went after those who can pose danger against him; Staunch secularists, especially ex-Army officers. He had to release them as his action started to draw parallel against theirs. Every doctrine he has, he inherited from Kenan Evren, so nothing has really changed. Erdogan also does what he does in secrecy, dependent of Turkish Intelligence all the time, there's no clarity in his actions. 2015 elections where PKK allegedly ended ceasefire just because AKP lost majority made millions think deep state is still active as ever.
And no! I do not have any "sources" on this, I'd be in prison already if I did. These are common knowledge in Turkey and it's really unhealthy to dig deep about it. Google is your friend. As I said before, none of these are secrets anymore. There are lots of articles on the internet details this (stay away from biased ones though, graywolves love to put their spin on everything), even Wikipedia article could give couple of ideas.