Please don't include the majority of the world that is benefiting from a new benevolent economic actor on the block.
Can you explain what behavior you consider "benevolent"?
They provide access to loans from an alternative world bank at competitive rates with less strings attached.
Adding depth/liquidity to global markets is beneficial to participants.
What foreign infrastructure projects? Surely not the ones where they lend money to foreigners but then China owns them? That's just investment, it's not benevolent.
The same for providing loans.
Neither of these are benevolent - they are financial tools to gain traction and influence on the world stage, as well as to make money. I don't think we can attribute any positive intent (towards the rest of the world) to these behaviors.
Yes the west and china are economic rivals. This does not mean China has zero economic benefit to the world. To not see this is utter blindness.
Either way it wasn't done for the benefit of the world. China started manufacturing because they wanted to gain economic power and arrive in the 21st century.