Multinational corporations have subsidiaries not cousins.
A great number of tricks go away if you treat subsidiaries as a single company. Countries are reluctant to pierce the corporate veil, but it’s all arbitrary rules.
Ultimately profits flow to a single entity. Taxing 1 levels down and stopping was clearly not the intent of my suggestion. If it’s under the control of Alphabet/ its profits go to Alphabet treat it as a single entity Alphabet.
The idea that subsidiaries, trusts, etc have any meaning whatsoever when collecting taxes is simply a loophole which can be closed at any time.
A great number of tricks go away if you treat subsidiaries as a single company. Countries are reluctant to pierce the corporate veil, but it’s all arbitrary rules.