These college kids are fully indoctrinated. They are not going to change.
They largely are.
But with a big majority of high school students going on to some sort of higher ed, you’re largely limiting yourself to the bottom third of the intellectual pool of an already dumbed-down generation if you hire only HS grads.
That is because all of the high school and lower students are being indoctrinated. It is time to abolish the public school system and expel the teachers’ unions from existence.