Well, Pearson is the 800 pound gorilla in educational materials. Does that make me trust them? It makes me trust them less. It is a bit like saying, "Communist China has been THE MAIN supplier of pharmaceuticals and personal protection equipment from home use to hospitals. If we don't use their materials, who else can we trust?"
Pearson and those who ensure Pearson's hegemony want your kids.
You haven’t answered the question -— what about subjects that are objectively true, where no teacher can BS his subjective opinion?
You know -— algebra,calculus,trigomometry, physics biology, chemistry, engineering, etc.
Ok, you don’t like Pearson, can you give us a better alternative?