The only time liberals will talk about IQ is when they are trying to get one of their pets off death row. Otherwise, talking about it is “racist.” Remember how they burned “The Bell Curve”?
Having an average or above average IQ doesn’t guaranty success in life, but it helps a lot. Having a below average IQ doesn’t necessarily mean failure. But, when you couple below average IQ with destructive personal or societal culture, it can end in disaster.
The point about low IQ being a cause of the gap between those who succeed and those who will be shut out and therefore struggle is easy to see. When you think about it, every occupation has a minimum I Q required to be even minimally competent at that job. The lower the IQ the less number of jobs you can potentially perform and the pay is always lower down there. Checkmate, most of this social engineering is simply useless.