The 2nd image - I very, very much doubt that's harm per user. "Overall harm" almost certainly doesn't mean that, and then harm per user is a very important metric.
Dude use some common sense. Drink a beer and compare it with smoking just one puff from a joint. Tell me which fucks you up more. There is your answer.
Maybe you equalize the dosages then. Otherwise I could ask you to down a few shots of hard liquor vs. taking a 5mg THC edible and tell me which fucks you up more.