Any war with Chine would be over, win or lose, before the first draftee hits recruit training, which will have to be expanded on a scale never seen since WWII.
I am not sure about that, but most have no idea how the draft would even work.
First of all, it would require the Congress and the President to authorize it. And what most people do not know is that the Selective Service does not have to deliver the first draftees until 6 months after that time. Because of the last 30 years of military cuts and base closures, our military could not handle a draft even if one was ordered tomorrow. There is simply no place to train more than a handful more than are taken in today.
As somebody else said, the days of branches having multiple Recruit Depots are long over. Most only have one, the Marines have two and the Army has four. And most of the bases are simply not there anymore or the former training areas are simply gone.
NTC San Diego closed 25 years ago, and no longer exists. The old basic training areas at Camp Bliss is now housing. Fort Ord was another big one, that's gone also. One can look at the list of such bases in the past, either gone or the land was repurposed decades ago.
And it is the same with the advanced training facilities. Once they were all equipped to train huge numbers. But decades of budget cuts saw that dwindle to the point that most can not really train many more than they are already. Not enough barracks and classrooms, and not enough instructors in addition to not enough base infrastructure to support them.
That is the problem when you close so damned many bases and give them away. We at one time "mothballed" them, so that if there was a need they could be opened again. But in the 1990's and afterwards they went through the DoD with a chainsaw and closed huge numbers of bases. Including every one in the San Francisco Bay area, and the only Navy Base that actually turned a profit.
I know that part of the plans for Mare Island if a draft was again required would be that part of the base could be converted back to a Marine Boot Camp, as it had been before WWI. But that base was closed 27 years ago.
Even if they brought back the draft, I would be surprised if anything over a token number of draftees started their training in less then two years.