As has already been pointed out, the not-not double negative cancels itself out, leaving us to work out what the sentence doesn't say...
OK, double-negatives cancel out, giving us:
"I object to your reverse argument of the fact that no-one cannot truly not know those that raised them."
I assume a "reverse argument" is an argument against a point, and if no-one cannot, then everyone can, so...
"I disagree with you when you disagree with the fact that everyone can truly not know those that raised them."
To disagree with a disagreement, is to agree with the original point, so...
"I think that everyone can truly not know those that raised them."
So, to answer the original question, the sentence doesn't not not say that the speaker does not agree that everyone can truly not know those that raised them.
Of course, you could just be lazy and say that it doesn't not not say something other than the original quote, but that would be cheating. :)
---
This signature has performed an illegal operation and has been shut down.