For a man, is it really that much harder to deal with a woman's death in war?

My boyfriend and I were discussing the whole women on the front lines issue, and while he agreed that they should be able to, he made a point that it’s just hard because a man can accept a death of another man better than he could of a female. Like women are traditionally stay at home, care for the kids while the men go off to war kind of thing. Times have changed but the feelings have not, so to see females in a war scenario is much more devastating. Seeing another man get blown to bits is apparently ok, but if it’s a female a man will be shocked and break down. Any thoughts on this?