Both can be causes of an underlying problem, not necessarily origin and consequence.
Is not a surprise that stupid people is generally stupid in more than one field. Somebody believing white supremacy has a previous mental condition that makes him/her blind to obvious contradictions in that speech. Thus, will be probably less capable to grasp complex concepts like evolution (or will choose to ignore it by a different motivation, like greed).
Is not a surprise that stupid people is generally stupid in more than one field. Somebody believing white supremacy has a previous mental condition that makes him/her blind to obvious contradictions in that speech. Thus, will be probably less capable to grasp complex concepts like evolution (or will choose to ignore it by a different motivation, like greed).