I haven't managed to kick pot after 18 years of daily use, but I don't care for benzos at all. Everyone is different. Everyone will suffer from any type of addiction.
I agree with what you're saying (like, overall, not just this quote), and I think a lot of addiction is personality dependent. For example, I can go a a coke binge for a day or two (or even have a nice line, jam my guitar, and put it down), and use meth occasionally and productively for a day or two max, but opiates I am a beastly fiend for and they rule my life.
I managed to kick pot after 10 years of growing good shit, and smoking over an ounce a week along with dabs all day and many different strains. You know how? I had to lock myself in a cabin the woods for 6 months. During which time, all I did was think about weed, when I'd be able to smoke again (even though it was giving me panic attacks at that point whenever I would smoke), reading high times magazines, learning more about growing, and watch people on youtube smoke bong. Friends who came to visit were NOT allowed to bring any cannabis products, which really pissed some of them off to the point that they would bail on a nice weekend on the lake. I tried explaining that I had become a straight up addict and really needed to quit as it was burning me out, but since they only smoke at nights, and not bong tokes all day to the max, as well as consider cannabis to be a non-addictive medicine for everyone (I'm not denying it can have very positive properties, just that some people get out of hand with it) they just couldn't understand and got offended unfortunately.
6 months later, I smoked a hit pretty much right when I got home and had the worst panic attack of my life. A switch flicked and I didn't even think about it for three years, and when people would smoke it around me it was just a foreign entity I had no interest in anymore and hardly remembered what it was like. Last, year, after all that I STILL went back to it and dabbed all day every day and smoked blunts all year long non stop. It zapped my creativity with guitar and was generally a huge waste of time (I'm not judging stoners, I'm judging myself).
Also, after 10 years of non-stop use I had mild physical withdrawals for two weeks. I could not eat food to the point that I would eat a small piece of pizza and 10 minutes later be out in the backyard puking my guts out. It took several days for me to be able to eat anything at all really, without puking, and at least two weeks to a month to be able to eat a decent meal. A month to be able to sleep. I got as skinny as I got in hardcore oxycodone withdrawals. I'm not dissing weed by the way. I just have a huge propensity for abusing cannabis, something that is non-addictive or at least controllable for the vast majority. I was smoking it almost like a crack fiend. I'd take a hit 15 minutes after a bong rip and not even feel any effects, but keep chasing it. This went on for way too long, and I will personally never smoke it again even though I love it in many ways.
Anything can fuck you up. Physical addiction doesn't really matter in my opinion. It just means you have to taper off. What matters to me are the more cognitive effects and the psychological dependency that can develop in which you feel the need to have a substance in your body at all times or you can't function or feel right.
So these days I use my dab rig for hitting dmt on occasion. A lot of people who studied mathematic physics were heavy into drugs.