The ideology is the common-causal variable. https://en.wikipedia.org/wiki/Correlation_does_not_imply_causation#Third_factor_C_(the_common-causal_variable)_caus

The ideology is the common-causal variable. https://en.wikipedia.org/wiki/Correlation_does_not_imply_causation#Third_factor_C_(the_common-causal_variable)_causes_both_A_and_B https://en.wikipedia.org/wiki/Correlation_does_not_imply_cau...