This is one of the positive developments as of late. More researchers are examining the claim and concluding that our system is not racially-discriminatory.
"The countervailing narrative is that US culture underwent transformative historical processes during the civil rights movement, resulting in a situation of legal equality and taboos regarding racism as well as programs such as affirmative action (e.g., Sowell, 2005). This perspective is supported by the observation, as noted above (e.g., Charlesworth & Banaji, 2019), that most indices of racism, explicit or implicit, show historically remarkable declining trends. It has been argued that this has created a paradox of racism wherein perceptions of racism, particularly on the political left, have risen even as actual empirical evidence suggests that racism has become increasingly rare (Kaufman, 2021). From this perspective, differences in outcome reflect real differences between cultures, with claims to prejudice selective or status-signaling for academic elites."
I also appreciated the preceding paragraph. I once shut down my principal holding court over some students with "systemic racism" claims with the question about the system thus having to be biased against men, if we follow the silly logic of the sophists of race:
"For instance, men are vastly overrepresented in the criminal justice system and may in some cases receive harsher sentences than women, though this is rarely interpreted as evidence of a matriarchal anti-male system, and more often as the natural sequelae of greater male contact with the criminal justice system. Similar, it is worth noting that evidence suggests that racist attitudes in the United States are becoming increasingly rare, arguably reducing their explanatory power for any differences observed in criminal sentencing (Charlesworth & Banaji, 2019)."
Link: https://www.sciencedirect.com/science/article/abs/pii/S1359178923000927?via%3Dihub