Then don't watch

No you're not the only one; some love it some don't.

Not everyone has the ability to box but like combat sports and want to compete. Some people grow up in areas where there aren't boxing gyms and learn wrestling from a young age, places like the midwest USA where wrestling is ingrained in them like football or baseball. Then they try to make it in MMA and learn some rudimentary boxing and other arts just because they like to compete. Guys like Marcus Davis who was a pro boxer but not ever going to be elite, so he transitioned into MMA because he likes to fight.

They are tremendous athletes though, for the most part, so give em' credit at least a bit.