From the link:

To continue offering these books, as well as even more high interest titles, we created an additional collection called Share Every Story, Celebrate Every Voice for our U.S. elementary school fairs.

So they took all the books with topics that isolationist conservatives believe are bad and corralled them into a separate collection that can be easily excluded by schools. This way, more schools can participate in their book fairs and make Scholastic more money.

Because that’s what’s most important to them.