Dangers of Boxing (Compared to MMA)

Most fighters that are realistic with average intelligence or just general common sense realize the dangers of boxing short term and more so long term. That's why when people (and some states banned MMA) stated MMA was brutal and more dangerous don't understand the scientifics of body damage. Yes they are both dangerous and MMA is more likely to cause severe immediate injuries, but the illusion after a twelve round bout and a boxer didn't suffer any facial damage or at any point seemed hurt, is the hidden danger of boxing. Going through twelve rounds of constant punches causes the brain constant jarring and significant damage. The brain damage to boxers is so apparent you wonder how the sport is still legal (that's simple: history, the public demand, politics and money). Take a look at interviews of long term boxers and you can see the slow slurred speech among other symptoms.
I watched an interview of Meldrick Taylor and how he was struggling because only a few states still allowed him a license. The poor guy couldn't even speak and any legislative body that allows him or anyone in similar condition should be considered a crime of torturing a handicapped person.