But with each passing day we see the opposite, more and more people are converging in one of a few opinions about each topic. This is great if you want to move the world in a specific direction, but I think it demonstrates that people are exercising less their critical thinking abilities.
AI definitely made this worse, but I think it started long before that.
Another factor that I think contributes negatively to this effect is that our society doesn't really like when someone is wrong, or changes ideas. If we want to encourage to use their critical thinking skills we also need to tell them that arriving at bad conclusions is ok, the important thing is to always keep improving.