It would just need to prohibit usage by the 3 major cloud monopolies, using any language that just applies to all 3 of them, e.g. a commercial license is requir

It would just need to prohibit usage by the 3 major cloud monopolies, using any language that just applies to all 3 of them, e.g. a commercial license is required if earning over $1 Billion total from hosting Services. It could also prohibit any commercial cloud hosting without written permission, for which it's automatically granted to every company that isn't Amazon, Microsoft or Alphabet.