Sorry I don´t follow you.
Apparently you get SSRI withdrawal from normal prescribed use. And its not surprising if you consider how long people have to take antidepressants.
I am a bit shocked, that something as commonly prescribed as SSRI have such severe withdrawal symptoms from normal use. Of the top of my head, i dont know of many kinds of prescription drugs that cause a withdrawal once you finish your regiment.
As I wrote having first and second hand experience with both kinds of withdrawal I think talking the danger of opioids down while talking ssri's up is wrong and dangerous.
Sure they are not comparable in risk, but the hurdle for a SSRI prescription is also quite a bit lower then the one for Opiod prescription.