This should provoke swift, hard, and overwhelming reactions from G7 countries. The undersea cables have to be inviolate or we'll see this happen all the time, with major negative impacts to internet stability and effective international commerce.
We are losing allies in the world with our constant vetoing in the UNSC.
Our support for this genocide puts the rest of the world in an impossible place and we shouldn't expect traditional international norms to remain unbroken if we're going through with it.