200 years of use with no objection from the courts says the gov’t can do it.
Don’t like it, sue the US and see how that goes. As long as you are a man, you have standing.
Let us know how it turns out.
There have, in fact, been numerous court challenges to the draft. In every case, the courts have ruled that it is permissible. But there is no way they can rule that way and remain logically consistent, any more than they can rule that a tax is not a tax or that a woman has a right to murder her child or that forcing citizens to pay tax on their incomes isn’t slavery.
The point is that courts that are supposed to rule based on reason and legal principle do not. They are subject to the same political expediencies everyone else is.