Tell me how exactly you could deduce with certainty that it wasn’t a medical episode such as an overdose just from looking at a video?
Have you ever seen anyone who’s taken too much opiate? They’re drowsy / sleeping to the point of being unconscious – certainly not resisting arrest. So yes I would say even from the video evidence alone it’s absolutely clear that his death was not caused by an opiate overdose. We additionally have a post-mortem exam, toxicology and medical experts that said it wasn’t that.
You’re flip-flopping. At first you were concerned about intent, apparently in agreement that Chauvin killed him, but did so accidentally. When that argument was roundly rebuffed, you’re now suggesting that he didn’t, in fact, die of suffocation, he died of an overdose? Get a grip.