It's human ignorance if the statistics do not support it.
I think the opposite: it's human ignorance (and also arrogance) to throw away thousands of years of human evolution just because you've computed some statistical data.
Statistics help but it's just a tool, just as your brain helps but it's just a tool.
I guess I only believe in the science, in reason, and in pragmatic ethics. If it's not evidence based then it's not objective. I mean every human has their feelings about anyone else and should we all make our critical decisions about what the laws should be based on how we feel about others?
I mean what if some of us don't like obese people and make laws which are discriminatory against people who are obese? I mean if emotions are setting the laws then ethically speaking if we follow what you just said (emotivism) then it's not even wrong because laws wouldn't have to be justified by actual evidence.
I rely on statistics because I know my brain is limited and can be wrong.
Nobody suggests that the legal system should be based on emotions. That's absurd.
What I criticize however is shaming people for expressing their fears of foreigners. Or rubbing statistical data into their faces to shut them up. Openness has to come from inside, cannot be enforced upon people.
Distrust to a different race is a healthy behavior shaped by thousands of years of evolution. You cannot override it easily with the rational part of your brain.