Why are you so surprised?
I'm not. Almost all large countries (USA,China,Russia, Germany, Brazil, etc...) have a dumb population due to structure induced totalitarianism by the ruling mafia (FM/R/J/B).
But people are responsible, else I think they are just cattle or now Guinea pigs. My generation once did make/had the choice. Just do not work for criminal capitalist (today already fascist) companies and don't buy their products.