>>527623982
He's right in the sense that the absolute worst of the worst you can experience in the jungle is indeed worse than how bad laning can get.
Even if you're getting killed between tier 1 and tier 2 turret as a laner the tier 1 falls eventually and even though you can't contribute for the team while your opposing laner leaves to shit on the other lanes and help with objectives you still have some genuine safety under that tier 2.
Meanwhile if you get early invaded as a jungler and your lanes are weak so the opposing laners can enter your jungle you literally get a literal cartel execution experience. As camps on your side are taken by the enemy jungler and they have vision in your jungle provided by their laners your movement becomes predictable so you're easily killed again. Your source of the most basic gold and experience gets taken away from you in a way which can never happen to a laner. The only camps left to take are those in the enemy jungle side, good luck getting there and clearing them unspotted. If you try to soak in a little bit of lane experience laners will hate you more than they already did for not ganking.