Men have always been the disposable sex. It's the biological truth of our species. The number of wombs in a tribe represented its most important resource: the capacity for reproduction.
One very happy man could generate enough semen to impregnate the women of an entire tribe. So what about the other men? They have ZERO inherent reproductive value. Their only value is what they can produce for the tribe.
That is why women are objectified for their beauty and men are objectified for their resources. That is the most basic, naked contribution of each sex to our species' survival.
What does that mean? Your life is inherently worthless. There are only two people in this world who truly care about you: your mom, and your dad -- if he stuck around.
SOCIETY DOES NOT GIVE A SHIT ABOUT YOU. It sucks, but it's our biological tendency.
Men have risked their lives to explore the world, work dangerous jobs, and go to war. Millions of men have been ground into the dust under the boot of the modern war machine. And for what? Resources.
Watch this, and think about MALE DISPOSABILITY: The D-Day Scene from Saving Private Ryan
(Edit: original vid was taken down; here's a new link)
Look at those men in the boat. Grim, determined, some prepared to die. And for what? Patriotism? Honor? Because they were shamed into doing it by society?
Most of the men in that boat will die. Machine gun rounds will pierce their organs. Mortars will blow off a limb, and they'll bleed out. Or they may simply drown in the channel under the weight of their gear. (Edit: some of these men were drafted, meaning they had no choice. That's slavery.)
(Side note: how could anyone in their right mind expect women to go to war?)
THE ONLY MEMORY of the dead men will be a tombstone in a national cemetery, and the grief of their mothers when they receive a typed letter from the US Army.
Civilization was paved with the bones of men.
You are disposable. Society doesn't care about you. CARE ABOUT YOURSELF FIRST. ALWAYS. Because outside of your mother, nobody else will.