Question for Leftists #3: Some Leftists claim that most Americans are stupid. But you run most of the education system. So who's at fault, then?

Updates
1 y
There's a reason why i assume that Leftists think Americans are stupid. When I watch entertainment sometimes, when I watch a YouTube video or a TV show, I often hear a snide comment about how the average American or Americans as a whole are morons. And people who entertain for a living (be they YouTubers or other social media influencers, or folks who write and produce movies and TV shows) seem to usually be Left-Leaning. So i just put 2 and 2 together. But I could be wrong.
Question for Leftists #3: Some Leftists claim that most Americans are stupid. But you run most of the education system. So who's at fault, then?
Post Opinion