What the hell went through GMs minds when they put these stupid things in!

How can anyone in their right minds do something so stupid are they that cheap! Just to save a few bucks they put in plastic radiators, seriously!

The parts are expensive but made cheap and your just throwing you money away. I trusted Pontiac I was told they were good vehicles . I don't want to pay full price for a new radiator cause its not worth it. This shouldn't be something that has to be replaced in 10 yrs.