The downfall of ARM?

You know that ARM is used in a number of microcontrollers? There are over a 100 of them in every modern car, also in Chinese ones. So there are a billion a year alone in that area. Then all the peripherals which use either 8051 or ARM based microcontrollers, like simple things like the keyboard controller.

While I think Risc-V has its benefits. I don't know how it compares today to the scalability of the Cortex-M series starting with the M0 and then following the Cortex-A series. But I see that it is still a long way to go par.