Hitler only murdered 20 million, so “Mein Kamph” is out of the running
“The Little Red Book” of Mao could be said to have murdered 153 million however.
While the former two have documentation, “Silent Spring” can only be attributed to all those who died of malaria after the ban on DDT.
DDT is the only real solution to eliminating mosquitoes en mass.
Mao's Little Red Book is way up there, too, if not vying for number one.