WHAT they teach is as problematic as HOW (H-O-W) they teach it and what they DO with it once they've got it...
Bibliolatry
”You can’t go beyond what you’ve been taught.”
Jesus's bastard bar mitzvah
Four crucified
Six denials
Fantastic zoological claims about cocks in antiquity
Eve the lesbian
Thorns
Glossolalia
"It doesn't matter what you do unless you believe it does." -VPW
Greek and Hebrew can be mistranslated in order to MAKE it fit. (See maxim above)
Holocaust denial or minimization
The unforgivable sin...
...and several hundred others.