Any party that re-institutes the draft in this day and age is signing their own death warrant. It will never be used again. Today, registering is just another tool of big government to maintain control, much like the requirement for babies to be issued a SSAN.
It will absolutely be used again. We are on a rocket sled towards a society that places service to the state above the individual. There will be involuntary service required of kids. Maybe working in a Detroit ER, or maybe militarily. But yes, they absolutely want to find a way to require service to the state.
And many “conservatives” will celebrate it.