Quick as you are always Mr. mercenary, I salute to the soul of Hajaj Bin yousuf that you carry. God Bless you.
Hajaj Bin Yousuf did, however, manage later in life (incidents in Mecca aside) to very successfully crush an attempted revolt by Khawarij, which is similar to what we face today.
Not to mention that it was Hajaj Bin Yousuf, not the Khalif, who dispatched his nephew Muhammad Bin Qasim to wage jihad against the rulers of Hindustan, which led to the first Muslim governance of Sindh.
Hajaj Bin Yousuf, not the Khalif, also dispatched Qutaibah bin Muslim, who was the first Muslim general to not only conquer but then establish Islamic rule in Central Asia.
If Mr Mercenary does indeed carry the soul of Hajaj Bin Yousuf, then aside from an attitude of cruelty, I expect that you assume that Mr Mercenary will also drive and sponsor others to establish lasting Islamic rule in far-off lands.