Good article by Ralph Nader as always, but his remark:
"Democratic incumbent candidates are ensconced in safe, non-competitive electoral districts (often because of their gerrymandering)"
suggests a misunderstanding of how gerrymandering works.
The key to gerrymandering is not to draw your own district boundaries is drawing your opponents district boundaries.
In my state the Democrats are imprisoned in convoluted districts that enclose poor and declining-populations with near 100% Democrat voter membership. The republicans than draw boundaries to enclose 60% Repub/40%Democrat districts - assuring Republican representation.
They did a good job. Pennsylvania's congressional delegation is 5 Democrats (28%) and 13 (72%) Republicans in a state whose overall population has a large democratic majority.
I suspect few poeple from the world's democracies really know how bad things are in the US. Does anything as idiotic as the ruling party's politicians drawing political boundaries, to assure they continue to rule, exist anywhere else in the world?