mma>boxing
mma is not superior to boxing when it comes to boxing
last time i checked you cant throw an arm bar or choke someone out in boxing. also look at Holms vs Rousey
Holms is a boxer and kickboxer who transitioned to mma and Rousey is judo fighter who does well on the ground but stuff standing. Holly guarded against any potential takedowns and kicked the stuff outta Rousey.
its like saying that russell wilson is a better baseball player than mike trout. while wilson may be able to play baseball, he is not better that mike trout who is dominant and specializes in baseball