I don’t think that was the Rebbe’s intention. It seems like a significant leap and assumption that isn’t intuitive at all. If Hashem created the world for a purpose, then it’s reasonable to deduce that He cares about creation insofar as it serves that purpose. But to assume that Hashem cares about every detail of creation even when it doesn’t relate to its purpose, “just because,” is attributing very human-like qualities to Hashem. That kind of emotional projection has no clear basis in logic.

It seems from your question that you conflate the attention that the Creator pays due to the act of creation with the interest the Creator has in His creations.
When one creates, it is natural to care about what happens to the creation, every possibility and every result within that creation is interesting to the Creator. Hashem has infinite capacity for attention and interest, so why wouldn’t He be following the progress of every detail in creation, ensuring that it continues to follow His intent in creating it?
I hope this helps

I’m not sure what your argument clarifies. Sure, a single gust of wind or stalk of grain is significant as it pertains to the whole, and that’s why G-d continues to create all of it. But if the system would function equally well whether the wind blows to the right or the left, at one speed or another, then why does G-d’s constant creation of it indicate that He is concerned with what is insignificant from the point of view of the ecosystem?

Also, your clarification seems to be advancing a different argument than the Rebbe’s. I would love to better understand the Rebbe’s.

whether or not it’s a minority halachic view, it’s something the Rebbe is careful about himself, and told others to be careful with it as well. so how “mainstream” the halachic views are dont make much of a difference anymore.

also, it definitely is possible that people print out the articles, and the issue comes straight back into the spotlight

Regarding the question here, the simple answer is: the whole ecosystem was and is created by Hashem. All the steps that bring the final result are continuously created by Him. So it is obvious that he has an interest in every part of it because לא ברא הקב”ה דבר אחד לבטלה

The same question applies to human beings. Even if God created the species and endowed it with the ability to reproduce across generations, why does that necessarily mean He is involved with each individual person? Wouldn’t His concern be with the species as a whole? That, after all, is essentially the position of many Rishonim, as the Rebbe himself notes.

So how does the Rebbe’s argument clarify—or challenge—that view?