The country that supported and used the peacetime draft is gone; young people who don’t want to show up for part-time job aren’t going to turn over their lives for a couple of years to a government with suspect motives at best.
When the dissent in the ObamaCare ruling pointed out that the law fundamentally changes the relationship between the government and citizens (forcing them to buy something like this), it was well said; our government is now the oppressor of the average citizen, and I wouldn’t expect many people will tolerate call-up notices.
If I received one for myself or my sons I’d toss it in the trash without giving it a second thought. Defending our country is one thing; “nation-building” in some Third World toilet where everyone hates us is quite different.
As was once said, “citizens not slaves”.