No, you can't take them, you can only enforce them or violate them

"They" are really only one: property 

Again, the right of property comes from the nature of man in the universe and the nature of interactions between persons 

 Bingo

Not quite, but a lot of them boil down to that 

That’s just roundabout way of saying rights come from God, but sure. Anything else is by definition subjective and a matter of opinion. 

 I'm an atheist, but if God works for you, fine.

I would call ethics "intersubjective" ... that is, between two subjects