But then why bother if you are just using someone elses pre-made macros with a fixed architecture (cpu + memories + peripherals + power & clock distribution)? A

But then why bother if you are just using someone elses pre-made macros with a fixed architecture (cpu + memories + peripherals + power & clock distribution)? At this stage, would it even be cheaper? I think there is some merit to risc-v but people pushing hard for it's use RIGHT NOW don't seem to understand the challenges of SoC design and manufacturing.