Because the liars who have already profited from lying will defend the current system.
The best fix that we can work on now in America is repealing the 17th amendment to restrengthen the federal system as a check on populist impulses, which can easily be manipulated by liars.
Yes, by state legislatures. The concept was the Senate would reflect the states' interests, whereas the House would reflect the people's interests, in matters of federal legislation.