Now the Islamic terrorists vow to demolish Kaaba because of Islamic hatred to Idolatry? So are they against Islam? Probably not, its only that "Charity begins at home" and now the charity is coming home. They are vowing to demolish Kaaba as par Islamic instruction to destroy idolatry, in fact they are true Muslims.
By the way, Kaaba must be given to ISIS, they will certainly not destroy it, because Mohammed already destroyed the 359 idols and only one remained that Abu Taleb wanted to save. ISIS will only abolish the idolatry. ISIS will not destroy it, else where will jihadists meet up and congregate