They're both symptoms of the true underlying problem, which is that the system is more about corporate profits than about making people healthy.
They definitely are, but I'm replying to the idea that the drop in life expectancy is because of inefficiencies - the us system has always been pretty inefficient and nothing there has changed in a way that would trigger a decrease in expectancy as far as I know. This current decrease in life expectancy seems to be linked to the ongoing opiod crisis, not a sudden decrease in health delivery efficiency
The number of uninsured people has been climbing the past few years and the expense of healthcare has continued to grow in relation to inflation.
Those are two factors that drive down life expectancy
Life expectancy started to drop in 2015, right as the uninsured rate reached its all-time low. They numbers don’t correlate. It might track to the increased cost of coverage and care, but not the uninsured rate.