He spends a lot of time discussing why pedophilia isn't rape.

Of a woman having sex with a minor, he said “I wish an attractive woman had ‘abused’ me that way when I was 14.” He directly addressed child pornography by saying that “making such photos should be a crime, and is a crime, but that is no reason to prohibit possessing copies of the photos.” He defended pedophilia, in general, in saying that “there is little evidence to justify the widespread assumption that willing participation in pedophilia hurts children.”

https://rms-open-letter.github.io/appendix