No, I'm talking about you choosing to address him by his unprofessional, self-chosen designation of "Dr. Umar." Dude is obviously a self-promoting charlatan who is much more concerned with being a celebrity than an academic and that is obvious even to an untrained eye. In order to do so, he needs naive mostly young followers to garner favor and allegiance with. He markets himself as "Dr. Umar" and "The Prince of Pan-Africanism."

And you're choosing to call him by his emcee name he has chosen for self-promotion.
This guy is like the sad progression of the shameful "I'm not an academic, I'm a hustler" modus operandi popularized by Cornel West and Michael Eric Dyson. But at least those two were serious and formidable intellectuals at one point before they became celebrity-drunk attention whores, unlike "Dr. Umar."