What should work is citizens serving as members of Congress which was the intention of the founders. Members serve one or two terms and then go home to live under the rules they made. What we have now is a protected political class. Many people in Congress have never had an actual job where their continued employment depended on their performance or had to meet a payroll. Instead of working for the country and their constitutions, they campaign for reelection and pass laws that help their donors NOT the people. Congress protects itself. It allows members to use inside knowledge to trade. It allows them to lie with impunity. It provides a slush fund to pay their legal fees when they are sued for sexual harassment. It allows them to direct funds to NGO's which then provide kickbacks Why do you think they were so upset about shutting down USAID?
Changing the way Senators are elected is worst amendment ever. At least when Senators were chosen by the state legislatures, they knew who they were beholden to. And they could be recalled if necessary.
The UK seems to be on the verge of allowing 16 year-olds to vote. It doesn't get much dumber than this which is why the Dems want it so badly for us too.