Sowell believes that systemic racism doesn't exist because he has examined the various research and finds issues with all of them -- namely that the various discrepancies they find can be explained in other ways.
He never claimed that systemic racism could not exist. In fact, in his books, he openly admits that he believes that it did indeed once exist. He just questions whether the studies being produced today are done so without pre-existing bias (are they looking for data to back up their belief, or vice versa) and whether the data produced evidentiates the conclusion. If indeed the studies you cite and that he refutes are looking for data to back up their pre-existing conclusion, then propaganda is the correct description.
No one has put forth the argument that Sowell believes systematic racism cannot ever exist. All that has been said is that he questions whether it currently exists today and the conclusions of the studies you cite.
He never claimed that systemic racism could not exist. In fact, in his books, he openly admits that he believes that it did indeed once exist. He just questions whether the studies being produced today are done so without pre-existing bias (are they looking for data to back up their belief, or vice versa) and whether the data produced evidentiates the conclusion. If indeed the studies you cite and that he refutes are looking for data to back up their pre-existing conclusion, then propaganda is the correct description.
No one has put forth the argument that Sowell believes systematic racism cannot ever exist. All that has been said is that he questions whether it currently exists today and the conclusions of the studies you cite.