ELI5: Can ICANN/IANA/RIRS take down the internet.

r/

You may think the answer is no but this is how the hierarchy is structured
IANA -> RIRS -> ISP -> USER. So what is stopping RIR’s from suspending ISPs and that would suspend the users internet access.

This is all theoretical obviously there are laws, but lets disregard any laws/governance.

That allows RIRS/IANA to go crazy to destroy the internet!!! (probably not but I am just curious on what is LITERALLY holding back these organizations from having power trips.)