That question doesn't pre-suppose a creator any more than 'were dogs meant to be free'. Whether your presuppose a creator or not, the question can still be valid. And since humans have held humans as slaves from practically the beginning of their time on this planet, I'd have to say that humans were not meant to be free; but have generally evolved to the point that they recognize that freedom is the best condition in which to exist.
Umm, yea you're basically wrong. What would "meant" imply? Meant in the question implies Humans having a purpose, i.e. not here by random chance, i.e. a creator.
You can interpret it that way if you wish; but that doesn't mean that your interpretation is correct.
And I agree with that.