Actually, you have clearly failed to even make a case. However you have clearly started to spit venom against a sect of Islam, to deepen the divide further..... while saying that you do not believe in sectarianism.... you are just making yourself a clear contradiction of your preachings and your practice.
You have the audacity to reject hadith from renowned scholars, and ask every reference from Quran alone, but here, you are copying the explanation of some unknown person.... as a supporting argument.
Please my dear, you are generally a good man. Don't spoil yourself in this sectarian hatred. It is Allah (SWT) Who Knows what a man hides and what he shows.... and He is The Best Judge.
Lets just not waste our time and energies in spiteful activities, since we are not the saviours of Allah (SWT), rather He be our Saviour (Ameen) and no one can harm Allah (SWT), so don't worry if someone is following the correct Islam or not. As far as someone clearly says that he does not equate anyone with Allah(SWT), then calling him a mushrik is an utter sin in itself. It is "Tuhmat" and "Buhtaan".