<s>[INST] It seems to me that a significant portion of people are getting delusional with regard to their own beliefs.  It seems that they are willing to accept anything that supports their own views, even if it's been discredited or proven false, and to discard anything that contradicts them, even if it's been proven true.  This reminds me of the Dunning-Kruger effect, where people who are incompetent in a particular domain tend to overestimate their own abilities in that domain.  But it also seems to be more widespread than the Dunning-Kruger effect, especially in the age of the internet and social media.

Is there a specific psychological concept or term that describes this phenomenon of people being overly attached to their beliefs and resistant to contradictory evidence?[/INST]