Which conclusions, specifically?
His and his co-authors controversial "conclusions" in relations to blacks that have been subject to learned criticism as it is:
Allegations of racism[edit]
Since the book provided statistical data supporting the assertion that blacks were, on average, less intelligent than whites, some people have feared that The Bell Curve could be used by extremists to justify genocide and hate crimes.[51][52] Much of the work referenced by The Bell Curve was funded by the Pioneer Fund, which aims to advance the scientific study of heredity and human differences, and has been accused of promoting scientific racism.[53][54][55] Murray criticized the characterization of the Pioneer Fund as a racist organization, arguing that it has as much relationship to its founder as "Henry Ford and today's Ford Foundation."[48]:564
Evolutionary biologist Joseph L. Graves described The Bell Curve as an example of racist science, containing all the types of errors in the application of scientific method that have characterized the history of scientific racism:
claims that are not supported by the data given
errors in calculation that invariably support the hypothesis
no mention of data that contradict the hypothesis
no mention of theories and data that conflict with core assumptions
bold policy recommendations that are consistent with those advocated by racists.[56]
Eric Siegel published on the Scientific American blog that the book "endorses prejudice by virtue of what it does not say. Nowhere does the book address why it investigates racial differences in IQ. By never spelling out a reason for reporting on these differences in the first place, the authors transmit an unspoken yet unequivocal conclusion: Race is a helpful indicator as to whether a person is likely to hold certain capabilities. Even if we assume the presented data trends are sound, the book leaves the reader on his or her own to deduce how to best put these insights to use. The net effect is to tacitly condone the prejudgment of individuals based on race."[57] Similarly, Howard Gardner accused the authors of engaging in "scholarly brinkmanship", arguing that "Whether concerning an issue of science, policy, or rhetoric, the authors come dangerously close to embracing the most extreme positions, yet in the end shy away from doing so...Scholarly brinkmanship encourages the reader to draw the strongest conclusions, while allowing the authors to disavow this intention."[58]
https://en.wikipedia.org/wiki/The_Bell_Curve
His throwaway comments in regards to women have already been addressed.
As before, he doesn't deserve to be an object of hate IMO and if you wanna continue talking about Murray then someone else might be interested. I've made my position clear by now.