"As Castleman (2016) points out, there are a number of studies covering a number of countries which even show lower rates of crime (for instance, rape and child sexual abuse) with higher levels of porn use, such as one covering Japan (Diamond & Uchiyama, 1999). Another one is the Czech Republic (and apparently Finland) (Diamond et al., 2010). This even includes forms of porn involving taboos. Castleman (2016) also points to Denmark, China, and the United States. This contradicts the idea that porn use drives such crimes."

"Castleman, M. (2016). Evidence Mounts: More Porn, Less Sexual Assault. All About Sex. https://www.psychologytoday.com/intl/blog/all-about-sex/201601/evidence-mounts-more-porn-less-sexual-assault

Diamond, M., & Uchiyama, A. (1999). Pornography, rape, and sex crimes in Japan. International Journal of Law and Psychiatry, 22(1), 1–22. https://doi.org/10.1016/s0160-2527(98)00035-1

Diamond, M., Jozifkova, E., & Weiss, P. (2010). Pornography and sex crimes in the Czech Republic. Archives of Sexual Behavior, 40(5), 1037–1043. https://doi.org/10.1007/s10508-010-9696-y"

A popular one, studies showing porn use being associated with lower levels of crime. From the draft post.