The military found that below 83 IQ, there is nothing that that person can be tasked to do by themselves that will be a net positive. This is from a group that loves cannon fodder and needs people to dig trenches.

I waned to double check what I remembered. Military requires an IQ above 80 and only 20% of recruits should have 81 - 92 IQ. When this standard was relaxed, the military became less efficient. Nobody should have doubts about IQ and its relevance after this.

One of the big problems we have is that most of these low IQ people can and does vote. This is a random example of college kids: