It seems not obvious to everyone, but you don't have to use a license, that allows AWS to run you into the ground. Take a look at API Copyleft License: https://github.com/kemitchell/api-copyleft-license
Also, it's not clear this would prevent AWS from running you into the ground. Amazon is more than happy to publish the source code of what they run internally; they make their money off operations and not software, so they're perfectly happy to commoditize software. The copyright holder is the one trying to make an "open core" business. AWS can just reimplement it.
> you must contribute all software that invokes this software's functionality..
So that rules out all proprietary operating systems, databases, 3rd party services, but why stop there? give us your CPU microcode.