donating dollars directly to the Communist Party of China

Diminishing returns; they already have billions of dollars.

to poorest provincial governments

Conditional on how much support they receive from the national government, this sounds like a good idea. Is there a process for donating to these governments?

convinced enough to change their purchasing habits to buy more goods from China (and other rapidly developing countries like India)

This is good, but I am not convinced I should spend my charity dollars on buying goods and products of Chinese or Indian make. That feels too much like a rationalisation. It is a charitable move to alter your spending habits, though, which I will do. That said, I live in Australia, where nearly everything is sourced from China already, so I can easily commit to this because it won't significantly alter my habits.