“I think it’s ridiculous that men still have to register for a draft that doesn’t exist.”
Selective Service (’draft’) exists: https://www.sss.gov/
Not active, but it does exist.
In November 1941 Congress passed a draft by one vote.
Men were being inducted six weeks later.
There is no reason to maintain a gigantic apparatus to register men, when in order to start involuntary inductions Congress would have to pass ANOTHER law.