You made several bold claims. Do you have any proof of any of them? The statistic you provided is useless without context. In the last 8 months there were ~24,000 automobile fatalities in the US. What's important is how Tesla Autopilot compares to that.
Also, do you have any proof that Autopilot is getting worse over time that doesn't rely on anecdotes?
I don't need to prove anything, since I'm not claiming that Teslas are safer than all other cars in all other conditions like Tesla and Elon Musk are. They need to prove their claims, and resorting to spurious comparisons to "miles driven" under conditions in which Autopilot was "working but not actually controlling the car" don't count.
Also, do you have any proof that Autopilot is getting worse over time that doesn't rely on anecdotes?