This is an interesting point, Richard actually addressed something very similar in the correspondence.
The objection goes something like this - We are all different due to genetics, environment, lifestyle choices etc. So the solution proposed (actual freedom via self-immolation) is not taking individuality into account and therefore it cannot work / should not be entertained.
And really what this objection is, is a cunning way where ‘I’ can hide in the details, “‘I’ am a unique individual, ‘my’ suffering is special”. As Richard pointed out though the human condition is fundamentally the same in all humans.
That human beings are born with fear, aggression, nurture and desire does not change with the genetic, environmental and lifestyle factors, it is a given across all cultures, places and times.
So it is not pinning anything on the human condition, it is discovering the facts, of what is actual and what exists only in the ‘human’ psyche. The “we are all unique individuals” is a distraction / excuse from discovering the root cause though.
In fact writing this now I realise just how common of a tactic this is within the real world! “‘I’ am different so whatever you are proposing could not possibly apply to ‘me’”, it is just an excuse though, to retain ‘me’ and ‘my’ territory.