He doesn't have _that_ many. And they're also not _his_, he just got them from NVidia.
I read that they bought quite a few, but their DC build out is not very fast. Maybe they should just resell the hardware
You don't have to like the guy, but buying something is typically how ownership goes. I refer to my car as mine, but I did just buy it from Honda.
I mean that it's not his IP, he's not producing any GPUs/TPUs. He's just reselling his idle stock of cards.
Not to be pedantic, but although the datacenters are running Nvidia hardware, Tesla did develop their own 20-core/3-npu high bandwidth chip for their cars. It's nowhere near the computational ability of any datacenter GPU, but at 150+ TOPS it's no slouch either.