This is an Ad Hominem attack. I've seen folks who never tried drugs attacked for anti-drug views and attitudes because they dont "know" what it's really like. I guess my own non-existent to miniscule experience puts me out of bounds too, if I told you no sane person should touch the stuff.
So who exactly will you listen to? That leaves a world-view impervious to dissent. As church lady might say , how conveeeenient, hmmm.
That's why they always demand to be told. They're as happy to employ the one ad hominem attack as the other.