Then here are some articles saying what I just told you, from "experts" as you say. Tesla is ahead, I never denied it, but it's not game changing.Except that Car & Driver, Road & Track, and several other car magazines don't seem to think the differences are as small as you do. Sorry, I just put more weight in the opinion of people whose job it is to test and criticize cars...especially when no Tesla advertising goes to pay for those magazines.
Tesla's autopilot isn't special (but it's still cool)
Is Tesla's Autopilot Really More Advanced Than Mercedes' and BMW's? -- The Motley Fool
And here's another less biased article
Tesla's Autopilot System is one step ahead of the game
Which has a quote "So while Tesla’s Autopilot isn’t revolutionary, it is evolutionary and will probably set the standard for the industry."
Again, I'm not arguing that Tesla's is better, I'm just saying it's not that much ahead of the game as Tesla wants you to think.