When the constitution was written, the signers compromised and decided that at a date 20 years from then, the slave trade would end. this would mean that no more slaves would be imported, however, all slaves already in the states would remain slaves. it would have at least been a step in the right direction. the date was not met, and was merely ignored until the civil war broke out.
The way that domen take active roles in the early and middle 1800 was :
higher education
Before that, high paying jobs such doctors and lawyers had no women in it
hope this helps
He was being careful of the defense funds allocated by NSC-68.