The way it looks to me, its inevitable that most nations on earth will get nuclear weapons at some point. It may take 50 years, it may take 200 years. But the idea that nukes will remain in a few hands indefinitely is unrealistic.
The real question is, will a nation like Turkiye lose first before getting them. A good example is Ukraine, she gave her nukes up and as a result she ended up facing a full on Russian invasion, that may one day completely annex the nation.
Another example of losing first was Russia threatening us over our interventions in Syria with things like nuclear strikes. They first had the crazy one whose clearly an agent of the Russian government threatened to nuke istanbul. Then once it looked like it wasnt going to deter us, Putin started actively talking about using tactical nukes against us. Have we been losing in the sense that we didn't pursue our interests fully because of fear of nuclear strike. Those threats would have been meaningless to us had we had our arsenal.
Had we had a nuclear arsenal with ballistic strike capability, would we have pursued our regional interests more aggressively and successfully. If the answer is yes, then we are losing already by not having them.