Or something, I don't know. I don't understand these people.
I believe the technical jargon for it is "soft power" - bribing locals to do what you can't force them to do, militarily.
Russia, Ukraine, India, Bangladesh, Mexico, El Salvador, and just about the entire Africa & South America have complained about political strings attached to USA-ID. yet, they'll gladly accept Chinese aid because it often only comes with economic conditions.
"complain" is not the only option when one objects to "political strings" attached to a donation. There's another option, known as "decline".
Revealed preference tells whether the "political strings" are actually maybe ok or just some haters doing what they do.
Hell, I don't even know what specific "political strings" you're talking about or how they differ from China's "economic" conditions. I'm just taking it on faith they exist, but you might be lying for all I know.
But understand: the soft power isn't going away, just the doctors, food shipments, and vaccines.