If it's not clear enough, I am not talking whatever Arduino strawman you came up with.
I am talking about RISC architectures such as RISC-V (which I mentioned by name), the sort that can scale all the way up to supercomputers and down to microcontrollers.
There is no justification for putting up with x86's complexity. This complexity has negative consequences such as vastly increased likeliness of micro-architectural bugs.
It is utter madness for many of its current popular uses, such as in servers handling personal data.
I mean, sure. On many levels and planes you are correct, but not where any of the intersections matter.