Would All Be Well If Muslims Jettisoned the Hadith and Stuck to the Quran?

Is Quranism (yes, that's actually a thing) the way to go? Raymond Ibrahim is dubious:

Unfortunately, [Quranism's] thesis is built on a faulty premise: Even if every single Muslim was to reject the Hadith and other “secondary books,” that wouldn’t change the fact that the Quran is saturated with violent and intolerant teachings that need little supplementation from secondary literature. 

Well over a hundred verses call for nonstop war, or jihad, on non-Muslims. 

How about jettisoning those hundred jihad verses?

Oh, wait. No can do (since the Quran is said to be "perfect" and therefore it cannot be amended).