Well, for starters:
1) As chattel property, slaves were liable to be sold, traded, etc without their consent;
2) Slaves were unable to enjoy legal freedom of movement to any state in the Union;
3) Slaves were unable to legally own property;
4) Slaves were unable to legally marry (and be legally entitled to the benefits that flowed by a legal marriage);
Given that laws and customs varied between states, you have listed valid points.
Having made that case, would you provide a case for 750,000 lives lost to address those issues.