Whole language is at fault. I was very involved in this years ago. I did many radio shows, ran a tutoring business and schooled my kids and others. I have written my own reading/spelling program and have taught many kids of all ages to read. It’s life changing. The problem is whole language and the almost religious adherence to it.
So, we spent centuries being able to teach kids to read properly, and then some knuckle head named John Dewey comes along. And with the intent of socializing American school children away from American ideals, he worked to trip up the way children read. Because if he could keep children from reading properly they would be unable to read their Founding documents and they would lose their hard fought inheritance. It was all done by design.