This defeatist mentality, I believe, is harmful to the cause of most Americans. Corrupt career politicians like Joe Biden are enabled by simply knowing that a fair share of Americans will vote for the establishment no matter what the situation, which allows for the continued corrupt bi-partisan establishment to remain in power basically indefinitely. Amercians criticize countries like Russia, China, Iran, etc. ("why don't the people overthrow their oppressive governments?") - look at us.
This is common, sadly. I met people who appeared to be prone to this during my time in the Army as well, and not long ago. Trump was president but I saw all sorts.
"Sensible Republican" is as much an oxymoron as "sensible Democrat" is. Start with the establishment itself, which is bi-partisan.