In his glowing endorsement of Peter Soto's PURE magazine, a child pornography zine which got Sotos convicted of possessing and distributing CP, Albini praises PURE for it's punk rock ethos and speaks warmly of Sotos. Albini also goes on to express his own pleasure at the content of the magazine:

The cover of PURE 2 is a guy holding open a toddler’s puny hole so his spuzz can dribble out. The girl is past crying. She is destroyed. Like I said, I like that sort of thing

Source: https://i.imgur.com/Gm7otzo.jpg

From the European Big Black tour diary, Albini recounts his enjoyment of the child pornography magazines he found in a sex shop in Hamburg:

Jaded as I am, I can't help but flip seeing a girl and guy of twelve or thirteen, tops, ramming Martel bottles up each other's asses. These are not the Dutch equivalent of abused trailer-park kids, either. They look to be in excellent health and seem to be honestly enjoying this. Makes all the conventional arguments against this kind of thing seem really silly. They're kids. Kids like to play with their own and other people's privates. They're just being photographed at it. Now, people who get a voyeuristic charge out of watching them, like me, I guess, well, we've got some grip-on-reality problems. There's maybe 1% of all pornography that has any effect on me, and it's definitely not a turn-on very often. But when it is, and it's as weird as this, it's pretty hard to take.

Source: https://i.imgur.com/9obDb08.jpg

Further elaboration on Albini's friendship with Sotos and his own child pornography conviction:

Sotos defending his distribution of child pornography in court, stating "child abuse is a sublime pleasure: https://i.imgur.com/UCn5NFB.png

Albini praising Sotos' "art" and his friendship with the convicted child pornographer: https://i.imgur.com/WLQb5ke.png

Albini also helped Sotos produce Buyers Market, a unauthorized collection of court testimonies and police interviews from child rape victims.

TL;DR - Steve Albini is a pedophile who has twice admitted to owning and enjoying child pornography. He is also close friends with Peter Sotos of White House, a convicted child pornographer who published child porn zines in the 80s and makes "art" about child rape.