you have to take into account miles driven. Yes, we have 37K fatalities, but trillions of miles driven. So, it comes out something like 1.2 fatalities per 100 million miles driven for human drivers. Which means, so far, self driving cars have a worse record per 100 million miles driven. So far.
I haven't been able to find any reliable source of miles driven by self-driving cars to make that claim, but if one exists it wouldn't surprise me.
But that's not really my point. My point isn't that self-driving cars are safer, it's that merely looking at one car accident doesn't prove that self-driving cars are less safe.
as of today, yes, the data indicates that self driving cars are less safe. The fact is, as of today, self driving cars are generating more fatalities per mile driven than human drivers. That may change in the future as technology matures.