I've dealt with this previously. There's a side of the world that don't consider porn an addiction, but more as a behavioural habit. There's a lot of research for, and a very common way of dealing with behavioural issues is via a slow weening process to bring it to a level you're happy to live with, e.g. quitting smoking (using patches, vapes/e-cigs, gums), food/obesity behaviours, alcohol even (it's one of the most harmful drugs for our bodies yet we as a culture accept it and try to just keep it at a manageable level, some decide to go cold and become alcohol free). This is effective if vigilant as it's easier for you to adapt to physically and emotionally/mentally and fit in socially, however in porn reboot terms, it just makes the reboot/rewiring process more drawn out, and in a moment of weakness you can very easily give in and just crave a bigger hit of the high.
The benefit of rebooting/rewiring in the way many do on these forums who are successful (cold-turkey/hard-mode) is that it gives your brain a whole new behavioural path to follow. However, if you continually relapse and let this just become another habit you start running into a similar problem of just looping back on yourself continually.
Ultimately there are many differing theories in psychology, as with any humanitarian science really (I'm a physiotherapist and there are very distinct camps within the field in how they each view and treat injuries and how the body reacts to them). There is so much research out there these days and too many variables in a human to be able to even A) consider them all, and let alone B) control them all and so differing results and outcomes are determined through science (there's a book called Bad Science which discusses this). We as humans due to our cognitive biases then like to pick and choose what suits the situation. So I know there's a camp of psychologists who truly believe porn to be useful for various things, such as in couple therapy to help reignite the fire in some relationships. And this does work...just as a short term fix...or some couples happily accept this as a required part of their sex life. Which in this day and age when we rely on a lot of artificial assistance (e.g. medicine, mobile phones, television as entertainment) is not really surprising.
You could say, kicking porn is to your sex life, as is the eating only pure organic home-grown food is to buying commercial products at the shop. One has a very niche sub-culture who are committed to it and aren't willing to accept the side-effects of the other, the other larger more mainstream group just prefer the convenience and are happy to live with the delayed onset consequences.
I'm not a believer in there necessarily being a right or wrong, you just have to decide on what makes sense to you and your life and which consequences you are willing to live with and which you are not. From there you just need to align yourself and seek out the people who support your view.
That's my two cents anyway. I definitely feel the consequences of porn very heavily outweigh the benefits for me. I've been in porn friendly relationships and they're a little twisted and not natural to me.
The way the psych that I was seeing viewed things didn't align with what I wanted to achieve necessarily so I moved on to seek advice from other counselors/professionals who do support the addiction notion.
I know the psych I saw is a very successful relationship/sexual health psychologist to others though where that works for them, whether it be a band-aid.
