Wolverine broke out of the X-Men and Hugh Jackmans performance has if you will pardon the expression carved out a truly unique representation of the X-Mens resident berserker. Though he is an X-Men with the usual affiliation to the Marvel Mutant Mob, Wolverine is an example of an individual character with a tremendous amount of appeal and presence in the MCU. Though the movies met with less than critical success, the Wolverine franchise met with overwhelming box office numbers. X-Men Origins: Wolverine, The Wolverine and Days of Future Past all combined to make over $500 Million. This alone shows that even if the films werent all that great, there are still armies of Wolverine fans who will forgive any film script as long as their favourite feral Canuck is in it. It also demonstrates fans overwhelming approval of Hugh Jackmans performance. In short, he nailed it. Wolverine is more than an essential character to the MCU; he is an example of a character with extensive longevity. Hugh Jackman has performed this role for over ten years and he is still aiming to add more notches to his belt. Removing him from the MCU list of possible successful films in the future could result in a significant amount of lost potential revenue, given Jackman's successful portrayal as well as his demonstrated expertise with the role. Wolverine is simply an irremovable feature of the Marvel Cinematic Universe.