The speaker 'laid/put a (big) guilt trip on' us [=tried to make us feel bad or sorry] by describing in detail how much waste the average American generates.
“I guess you're just too busy to call.” “I don't need the 'guilt trip', Mom. If you want me to call more often, just say so.”
He's not entirely to blame, but he's not 'guiltless' [='innocent'], either.
(..) to control you. She led you to burn Alessa Gillespie. She led you to burn an innocent child. But you will not deny your guilt... ...and you cannot deny her pain! That child was sin incarnate. No, it's you who have sinned. You darkened the heart of an innocent... (..)2006 Silent Hill