It will never defeat the power of the Good Lord, who can overcome all things.
Whether a person is addicted to alcohol, cocaine or pornograph, the Lord can take it so that it is no longer a burden to you.
Porn is highly addictive, and very problematic for a lot of men (and a few women). It causes destruction in their lives, their families, sometimes their work....
I'm not sure that it's not personal addiction that causes some of the irrational reaction against removing it from their lives that isn't the motivation for a few folks here.
It's a very real problem in our culture, and it needs to be addressed up front as such.