I don't watch boxing to see "two human beings beat the shit out of one another". God no.
OTM. Problem for a lot of people is they grew up in an age where boxing, through Don King's shenanigans and assholes like Tyson, increasingly rendered itself irrelevant. The show became everything outside the ring and not what happened in it. But if you go back and watch the Ali fights in the 60s and 70s, or even earlier footage of the great champions, you can see how much more "the sweet science' was than just a couple guys beating each other up.
I'll echo this sentiment (although I wasn't alive to witness those great Ali fights, but I've seen some on tape).
I wacthed some UFC with a friend a few weeks ago. I almost vomited. One guy took a roundhouse kick square to his face. He was lying on the mat twitching. At no point was I impressed with the athleticism. Like I said, I just wanted to be sick.
Boxing on the other hand, well I used to watch a good deal of boxing when it was free and/or on HBO. Those guys are true athletes. The problem(s) as others have notes involve the don king shenanigans, the fact the belts rarely seem to be unified, and the fact that fights are rarely televised on free tv, or even basic cable, so public interest has greatly diminished.
The sport just isn't what it used to be.