The 19th century Zulu empire can take on the 200 AD Roman empire and the 13th century Mongolian empire easily?

Zulus were primitive spear chuckers who most people have never even heard of. Romans were far more technologically advanced than any other civilization of their time. The Legionnaires would ***-rape any Zulu *** with superior tactics, training and weaponry. The Mongol hordes under Genghis Khan was possibly the best military force since the Ancient Romans, and the Zulu nigs would be pierced by many arrows and stampeded to the ground by their horse armies.