The people should not directly elect their senators. They should elect people on the STATE level to appoint people to go on to the federal government. This makes state elections more meaningful and their power more important, therefore, increasing the power of the states. Direct election of senators is another attack on state's rights.
How is this an attack on states' rights?
I believe the direct election of U.S. senators by all the people of a state promotes democracy and freedom because then these U.S. senators represent the voice of the majority of all state residents, not the interests of the ruling party of the state legislature.
I understand that the U.S. house is the voice of the people, but the job of U.S. representatives is to serve the interests of your district first, and then the state. U.S. senators further the interests of the entire state, and should therefore be elected by a majority of all state residents, not on a district-by-district basis, which would occur if they were elected by state legislatures (which are elected by district)
Having state legislatures elect U.S senators would be especially dangerous in states that have a history of being very partisan.
For example, both senators from North Dakota would likely be republicans if it were up to the legislature to decide, but the people of North Dakota chose Democrats.
Our constitution is a wonderful document, but it is a document that should reflect true democratic values first and foremost, not rigidly chained to the beliefs and concerns of our founding fathers, no matter how well intentioned they were.