What you are describing actually applies more to USA than China. Its USA which is a closed country and shutting out anyone it has a mild disagreement with(a.k.a sanctions).
In comparison with China, the US is one of the most open countries in the world. China is horrifically closed-off to investment, imports, and so on.
Where to start ...
You realize that BRI doesn't have grants, just debt, right?
The purpose of BRI is to build ports for the CCP navy, but have somebody else pay for them.
Fact ah. USA is a closed country. Great 50 cents or what.