Why is humanity suffering from stupidity?

Humanity is suffering from stupidity for many reasons.
Not enough eduaction.
Powerful speakers that sway people.
Greed.
Overconfidence.
We can stop this, but yet we don't, because humanity only wants money and nothing else in their lives. And that, is why humanity is suffering from stupidity.

The internet and the government education system. Case closed

5? idk cause u put “it’s 5”