A hard line here is absurd since China is more advanced than The US as for maritime container commerce.
Europe is at their level, or at least getting to that level. Security is fundamental in that domain and security in the China Seas and in the Indian Ocean is crucial.
The US cannot do anything about it because they are not on the rim of these two oceans ‘and Trump plans to drop TPP though the US is on the rim of the Pacific Ocean.
To take a hard-line stance on China is for the USA the best way to commit suicide. And they will never disunite Russia from China. That’s a daydream, or rather a day-nightmare.