People who keep fantasizing that China should do this and that in terms of hard power geopolitics forget that it took decades for the US to build up its global military strike and logistic capabilities, not to mention the sheer luck that it was largely untouched by WW2 outside of Pearl Harbor. In comparison, China only debuted its first truly modern aircraft last year, its naivety to think they can develop the same capacity for adventuring as the US in a matter of months.
Also, compared to the Soviet Union that supported governments and armed groups all over the world, at least those entities were motivated by socialism and willing to put up a struggle. In our post-Cold War world, most of the global south is still rife with corruption and weak feelings of nationhood, thus creating a small elite class and largely apathetic populations that are only really out for themselves and thus unwilling to resist. Which therefore means any money or weapons China throws at them, might as well be thrown in a blackhole, the only exception here seems to be Pakistan.
So what if people are mocking China's inaction as an example of how it isn't a superpower? When did China ever posit itself as one? The US is the only one that's still wrapped up in the idea of a global ideaological struggle. China is playing the only game that matters, which is boosting the quality of life and technological progress of the Chinese nation. Less we forget, that was how the last Cold War was decided. The US and Soviet Union made endless chess moves against eachother, but one country was a land of plenty and oppurtunity, and the other had its citizens line up at 5 in the morning for something as basic as bread. That's a historical fact, as such I would argue the recent big development in the Sino-US Cold War isn't Maduro's kidnapping, but rather the "kill line" going viral on Chinese social media. America can pull of these impressive military operations, all the while its roads are falling apart and people are one missed payment away from homelessness.
Plus, might makes right, but just because doing something is right doesn't make it smart. The US has Maduro, but now what? All this stuff about how they're going to administer Venezuela, which will require boots on the ground and also other actions in Latin America, they'll be busy for years to come remaking their own backyard in their own image.
In that regard, since when has a distracted US ever been a bad thing for China?