Beautiful ending for Wolverine, horrible ending for the X-men

Rating: 6/10 (4 March 2017)

The movie is a beautiful ending for the Wolverine series, but a horrible ending for the X-men story. Let me elaborate.
As Professor X said in the movie, Logan has always wanted liberation from his immortality, and the desire has grown stronger as he grows older, weaker, and lonelier. But how to let such an iconic, unorthodox character die with dignity without falling into the clichÃ©s of dying for love/friendship/saving the mankind? The movie does a great job in delivering that end. Logan died for a purpose, which is protecting a group of young mutants. But he was a reluctant savior, as he should be. He did not die for a noble ideal. He died for the simple reason that he did not want the miseries that happened to him repeat on the innocent youths. He fought a good fight, showing off some of his classic moves, and died like the lone hero that he is. It was truly touching and beautiful.
But in granting Logan a fitting death, the movie sacrifices the entire X-men sequel's sense of meaning. In the story line, all the other X-men died out. Professor X is old, broke, weak, and inflicted with a severe brain disease (okay, I see the irony, smart move, except not really). Anyone who appreciates Charles Xavier's wisdom, lovingness, and tireless effort to provide a home for the mutants, not even to mention his immense power, would be HEARTBROKEN to see him end up like that. Left alone in a shabby shelter, killed by a cheap robotic Wolverine, and buried like a stray dog next to the road. Professor X deserves better, and X-men for hell deserve better.
I get it that the director wants the extra tragedy to give the movie power and depth. But in giving Professor X and other X-men such an unfitting end, the movie is self-defeating. If neither Magneto's violent approach nor Professor X's peaceful ideal can give the mutants a happy-ever-after, what is the point of all the struggles and fights in the previous X-men movies? Moreover, what is the point of escorting the young mutants to temporary safety? Wouldn't the all-powerful pharmaceutical company collude with the Canadian government and wipe out the mutant youngsters in no time? Once you put this movie into the big picture of the X-men universe, you immediately realize that the movie gives up too much of the sequel's significance to complete a single character. An iconic and important character, but a single character nonetheless.
Any Wolverine or Hugh Jackman fan, as I am, would be happy for this version of the end of the iron-clawed X-man. But as a X-men fan, I question the movie's interpretation of the sequel.