He needs professional help. Porn can be as addictive as drugs. I know there’s a ministry called Living Waters that helps people through sexual traumas and addictions. Healing prayer to at least cut off all the bad spirits and things that come through porn is a start. I used to watch and one day, and saw into the spiritual realm when I decided to get prayer for it— there are monstrous, spiderlike demons attached to the industry— the same ones overshadowing the human trafficking and slavery that often fuel amateur porn production. I think it’s best to tackle this going both the professional help route and the spiritual route. My condolences and prayers are with you guys.