Its impossible to increase the fiscal size of government long term without raising taxes.
Borrowing doesnt replace, it just delays. But you know the phrase, When you owe the bank a million, they own you. When you own the bank a billion, you own the bank. China is much more dependent on trade with us as a percentage of GDP than visa versa, especially if Japan and Australia are thrown in. And that doesn't begin to address their other vulnerabilities.