”Without Jihad, nothing more of Islam is left”
Around 75% of the Sira (the life of Muhammad) is devoted to Jihad.
Around 61% of the Qur’an is devoted to Jihad.
Around 20% of the ahadiths is devoted to Jihad (ps: there is no one positive reference to kafirs)
If you want to reforme Islam (and surely destroy it, because nothing much, except the concept of uniqueness of God would remain), you have to keep out all these verses.
Therefore, there is a very good reason that Islam will never be reformed. It’s impossible (actually it happened, and it has been performed through al-Wahab (1703-1792), bringing Islam back to pure salafism (Arab: predecessors; ie: Islamic movement that takes theearly period of Islam as model))