I heard Muslims say that about Sufis before, it is your free choice to have this opinion
Oh I'm sure, and can prove it just by proving links on the internet to your own sites and how your leaders discuss things.
I use to be Sufi inclined, and use to argue against Shiites who hated Sufism, but I know why Ahlulbayt (a) warned us. I've done my research.
Oneness of existence is Tawhid argument true, doesn't give the right to mix all sorts of conjecture and magic of Iblis, with Islam, because you know God is the light of all light and is the core of all existence.