Also, the nail on the coffin for my unquestioning admiration for Russel could be the passage were he suggests that the human race survival might not be desirabl

Also, the nail on the coffin for my unquestioning admiration for Russel could be the passage were he suggests that the human race survival might not be desirable. Was it just intended as a joke? Or was he in such a bad mood around that period? Misanthropy is so the opposite of Russel that I had to read the passage several times over.