Why would smaller countries who are looking for a competitive edge to attract business ever agree to this? It seems like this is really just in the interest of the US and other big incumbents that rely on large tax revenue already. But even within that group, enforcing such a minimum really has the effect of cementing the incumbents' hold on economic power. So why would any nations other than the US agree to this, when others stand to benefit by gaining economically at the cost of the US? Personally I also find the notion of a global order that prevents flight (of companies, capital, etc.) to be a bit dystopian. I don't want any power (a nation, or a coalition of nations) to have that kind of influence or authority, and this proposal doesn't give me good vibes.