Doublethink huh?
How about this? What if I told you that it's a self defense mechanism?
Surprisingly, IPC has been found to intensify, not abate, as the members of the public become more proficient in the forms of critical reasoning essential to science comprehension (Giner-Sorolla, & Chaiken 1997; Kahan 2016). Numeracy is an aptitude to reason well with quantitative information and to draw appropriate inferences from data (Peters et al. 2006). Thus, the individuals who are highest in numeracy are the best able to recognize whether evidence from a controlled experiment displays the pattern of covariance that supports or negates a hypothesis—unless that evidence relates to a politically charged issue (e.g., gun control). In that case (Figure 2), the most numerate people are even more likely than the least numerate ones to construe such evidence as supporting the factual beliefs that prevail among people who share their political identity no matter what its true import (Kahan, Peters, Dawson & Slovic 2017).
IPC= Identity-Protective Cognition
Note that the ones that dig in the hardest are the more Numerate ones.
At all costs defend the con, because they can't bear to be outside of the group.
https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3046603