You know what, let's say we are occupying Tibet and Xinjiang, so what? Let's say we don't have claim on SCS.
But you know what matters? At least 4 carriers by 2030. Including at least one nuclear and over 100,000 tons. Fifth gen fighters, 10,000 ton+ surface combatants, new generation of attack and ballistic subs, as well as hundreds of other vessels, says the China seas belongs to us.
You don't agree? You can die. That's what these machines are built for.
Unless Vietnam start spending 100+ billion on military today, you are not only not going to catch us, you are actually falling further behind.
As to the US, we won't be able to attack US, but with these new ships any war between US and China fought within Indian Ocean and half way of Pacific would mean suicide for US.