I don’t think humans are less intelligent. I think it is just that people aren’t taught to think any more. Reason has fallen out of favor and been replaced by groupthink and political correctness. We are taught that we must respect all opinions and not judge because after all, who are we to think. One persons opinion is just as valid as another’s. We can’t really know anything. After all what is true for one is not necessarily true for others. There is no black and white, everything is grey. This is the new western philosophy.
Agreed. A lot of it is, at its root, an excuse for laziness.