I wonder if the US economy could change to accommodate all that education. If it could change the proportion of low-education (and typically low wealth creating

I wonder if the US economy could change to accommodate all that education. If it could change the proportion of low-education (and typically low wealth creating) jobs and simply have more people working at higher-levels, creating more wealth. Why are there so many low-productivity, low-wealth-creating jobs that don't require higher levels of education (be that college or other), and what can we do about it?