That's quite an arrogant remark! Shisui/Tobi discussion have been done to death at the base.Read the manga but clearly did'nt understand the implications of it.
If Shisui's eye was strong enough to put a complete illusion on Itachi, and make him follow the command implanted in his eye then he could have put the latter under an illusion before that via a similar command. A command such as, say making him believe he's really Madara.U_U
Just because you stubbernly refuse to believe that it's not a new idea it doesn't mean rest of the members do not know what you are driving at.
There is a stickied thread above in Manga section. You will find many Tobi ID threads in there. Add yours to it if you think you have any better argument/theory or something really new to add up which is missing from there.