Why cant mixed martial arts and boxing co-exist?

I train in mixed martial arts and I am a huge fan of the sport, so I'm an MMA guy first. With that said I also grew up watching boxing and I love it as well as mma, I'm a fan of both sports. So my question is why don't people think they can co-exist? For all the boxing fans who say that mma is stupid and ' homosexual ' , its not. You can't really understand how difficult the sport is untill you try it. Having to deal with punches, kicks, knees, and elbows as well as clinching, wrestling, submissions and your overall ground game is not easy. It takes alot of skill and grappling is not ' homosexual ' in anyway, Its 2 fighters displaying ground fighting skills. Mma is a chess match and Its the fastest growing sport in the world, its not going anywhere. Now also for all the mma fans saying that boxing is dying, its not. Boxing is perhaps the first huge combat sport worldwide and its a sport of legends & icons, Its not going anywhere either. I think mma and boxing are 2 completely different sports but at the same time they both are entertaining as well as exciting and they CAN co-exist and both be successful, opinions?