This thread and conversation has been about the draft as it has existed in the USA. And it has damned well been compulsory unless those subject to it were able to avoid it by some illegal means, and then the law prescribed punishments for that.
"Responsibilities without compulsion" is a totally irrelevant concept in this discussion. The draft has been compulsory, and there has been no move by the feminists, who demand equal rights and opportunities, to require that women be subject to the draft the same as men.
It you want to continue going off on tangents, go ahead, but this "point" you keep trying to make is not relevant to what's being discussed here.
My point is central.
And yes, there are reasons why the draftable “unorganized militia” is defined as is.