Two important things happened recently, the caliphate will not be much longer.
Iraqi forces enter Mosul mosque where Isis declared caliphate
Iraqi forces close to seizing control of Great Mosque of al-Nuri, where Abu Bakr al-Baghdadi proclaimed himself Isis leader three years ago
Russia's Foreign Ministry has said there is a high degree of certainty that Isis leader Abu Bakr al-Baghdadi is dead.
That's a gigantic exageration. Caliphate roughly translates to Empire; but it has greater meaning by Arabic reckoning is greater than that too, as it must be ruled by someone from royal lineage in the line of Qeraysh. Calling them the Caliphate is as accurate as calling them the Roman Empire.
They're a few thousand paramilitary rebels that is over-exposed in Western media, not an Empire.
I describe myself as a little dose of toxic masculinity.