There is data confirming the popular belief that ordinary Americans hate Congress.
By my count just 18 out of 100 U.S. Senators had approval ratings over 50% in 4th Quarter 2019. Therefore, 82 out of 100, or 82% of Senators cannot get over half their constituents to like them.
I based my calculation on The Morning Consult’s Senator Approval Rankings. I think Morning Consult’s findings show the idea that most Americans are comfortable with their Congresspeople is false.