As is evidenced by writing off the critical thinking skills of others. None of us are terribly good at critical thinking.

Now I think about it, that likely particularly applies to those of us who believe we are great at critical thinking.

Some people are adequately humble on some occasions, but statistically speaking you're very correct about whom this applies to.

(Personal side note: This shouldn't mean we throw our hands up in the air in hopelessness, but it should remind us that we all have a mandate to be more critical of our own thinking than of that of others.)