Obama administration's exerted efforts to end Bashar al-Assad’s regime, just as was done with Qaddafi in Libya, payed no attention to the so-called “rebels” and their political affiliation. The end result is an uncontrollable monster - ISIL. Russia's direct military intervention in Syria changed the dynamics of war since its outburst in 2011.
US's recent weakness does not mean the end of US hegemony in the world. However, it is no more an absolute power in the global arena. Russia's airstrikes in Syria have negated US's questionable efforts in the controversial conflict. Given that, one can say goodbye to a unipolar system prevailing in the world until recently.
Turkey has reached a phase where “bigotry invades government and regime” until a new government is formed, which will put an end to the operating administration, “which is most unlikely now”; or until early parliamentary elections take place, “as it's expected”, which will shape the future government of Turkey.