Not 100% sure what the parent is talking about, but my first thought is the predictive policing algorithms used in some jurisdictions to set bail and make parole decisions. My hazy understanding of the controversy is that these algorithms have "correctly" deduced that people of color are more likely to reoffend, thus they set bail higher or refuse release on parole disproportionately. At one fairly low level this algorithm has noticed something "true but politically inconvenient", but at a higher level, it is completely blind to the larger societal context and the structural racism that contributes to the racial makeup of convicted criminals. I'd argue that calling this simply "true" is neglecting a lot of important discussion.

Of course, perhaps the parent is referring to something else. I'd also like to see some examples.