Apparently most Marines don't think women in combat roles is a good idea

It would appear that the Marines, despite pressure from the Obama administration, are not sold on the idea of allowing women into all combat roles:

A survey of nearly 54,000 members of the Marine Corps found that two out of three male Marines and one out of three female Marines were opposed to opening all combat jobs to women, underscoring the depth of opposition the service faces as it is required to begin fully integrating them this year.
The survey was carried out in 2012 by the think tank CNA, but the results were withheld from the public as the Defense Department announced in January 2013 that it would open all combat jobs following a lengthy research period that ended last fall. Defense Secretary Ashton B. Carter made the change official in December, giving the services until this spring to begin fully integrating women.

Previously, the Marines conducted training exercises that indicated male-only units performed better than male-female units in pretty much all respects. Nonetheless, Secretary of the Navy Ray Mabus apparently doesn't give a shit, telling the Marines that, testing or evidence or reality notwithstanding, women will be in combat roles, period.

Mabus, or course, is an idiot who is simply doing what Emperor Barry I tells him to. I don't think a lot of people think there are a lot of women who can carry 80-100 pounds of equipment into battle, carry it for many, many miles, and then fight when they get to their destination. I don't think there are a lot of people who think that there are a lot of women who can carry a 200-pound wounded fellow Marine to safety under fire. Or even not under fire. And I don't think there are a lot of women who want to even try.

As long as the Marines are allowed to maintain the same physical standards for combat arms units, I don't really think that Secretary Mabus' idiocy will make much difference. Few women will want to even try to meet those standards, and it is unlikely that many, if any, will pass. If the Marines are forced to lower the standards, I think we can be sure that combat readiness will suffer.

The rationale for allowing women into combat roles is that the military, and especially the Marines, tends to favor promotion to high levels to people with combat experience. The truth, though, is that promotion boards measure candidates against people in the same field: logistics officers, intelligence officers, and other rear-echelon officers are not measured against trigger-pullers when promotion time comes. They are measured against other officers in their field.

I suppose that you could argue that the Marine bias in favor of promotion to top levels of people with experience in combat commands, would exclude women from consideration from four-star level, and thus from consideration for commandant of the Marine Corps. I don't think that means that people who cannot physically handle the demands of combat should be allowed to serve in combat roles, forcing the other members of their unit to pick up their slack, just so that person can perhaps become commandant later.

The military is not a social experiment. It is an organization dedicated to breaking things and killing people. Women, by and large, are not real keen on this mission. Wh would you want them leading such an organization?