Our ministry has also been disappointed at the disengagement of so many churches and of so many men as the flood waters of the epidemic of pornography have risen to disaster levels without the majority of the church even addressing it, much less providing rescue and shelter and safety.
I hope that these thoughts may be of some help to you.
1. Talk to your sons about these issues. Not just once, but let it be an open and running conversation. Not a lecture, but a 2 way conversation.
2. Ask questions. Let them ask questions. No matter how awkward. Let it be a dialogue.
3. Be as transparent as is appropriate, yourself. About your own struggles with sexual issues and questions etc. I know this is between a mom and sons so that would probably be different in many ways than between a father and a sons. That is why I say be as transparent as is appropriate.
4. Always show unconditional love no matter what revelations you hear in response from your sons. When they fail in the area of porn, lift them up vs. putting them down. Don't freak out and don't give up!
5. Don't just talk about why porn is not healthy spiritually, emotionally, and relationship-wise, but also talk about what is healthy spiritually, emotionally, and relationship-wise. Don't just focus on the negatives, but also focus on the positives and benefits of not watching porn.
6. Put a plan in place for when temptation comes. It will come. So, knowing that, what is my plan of action when that happens? What to do? Who to call? Where to go? If we fail to plan, we plan to fail. Now, we may still fail sometimes, but it will begin to be less often when we have a plan already in place.
7. Help them to identify when they are most susceptible to the porn temptation. Is it when bored? depressed? lonely? around certain friends?
8. Help them to learn to guard their hearts and minds with God's Word. Now, we still have the choice to accept or to reject what God's Word says when we are tempted, but the more of God's Word in us, the harder it often becomes to willfully reject what It says.
9. Also let them know that when we choose to willfully sin, we are missing out on God's very best. Try to help them see God's best and trusting Him (hard sometimes) vs. our best as far as we can see (easy sometimes) and trusting ourselves.
10. As a practical matter, place all computers in the home in a visible open place. No surfing alone in a private room. Also accountability software. Covenant Eyes is very good. Anything like that to make private porn viewing more difficult.
This is obviously not an exhaustive list and all the points probably warrant further discussion and clarification. But I hope this may be a start to build on. I am sure others have advice as well.
Freedom Begins Here offers the DVD and Guidebook, Father + Son: Talk About Sex. Ideally that is for fathers and sons, but if the father refuses, it could be adapted to also help a mom and sons to deal with these issues. It is available online at this website. There are free previews available if you wish to check it out.
And finally, you may need to find a different church! If the pastor and other men in the church have refused to help you in this area, then it seems like something may be wrong there. At least, that is my initial thought. I would give much prayer to this if indeed that is the case.