I don't understand ANY argument for conscription. Of all the laws on the books that are still "acceptable" in modernity from even the "progressive" crowd, the one that perplexes me the most is conscription.
For me, it's just so simple: If a government needs to force people to fight for the government then the government has no right to exist. A legitimate government should be able to raise a fully volunteer army because all the citizens the government represents wants to fight to defend this government.
Just think about it for a moment. Supposedly some evil enemy is coming to rape your women and kill all the men or enslave everyone by taking their rights away. Everyone should want to defend against that, no? If someone doesn't volunteer to fight against that then clearly they've decided that rape and death is better than... rape and death? Or, perhaps they've decided they can still live without dying for a country and they'd rather this conclusion.
How can anyone justify using force to force something to go to war and die against their will?
I hate the concept of conscription so much I think anyone who suggests it should be hanged, tbh. You want people to fight for you? Offer them an incentive then.
In other words, it's a tragedy of the commons situation.
Nobody except a few crazies want to sign up for military knowing they'll likely die and if nobody signs up then all will die; volunteer army is almost entirely people who don't actually expect to die.
The most sensible choice for an individual is to avoid the military and that's why conscription is needed or the country is lost.