The core feature of the senate that makes it so indefensible is how it assigns power to states, not people. That relationship cannot be amended, per article 5 of the us constitution.
It's far easier to change a state government than it is the federal government. The states used to be able to recall Senators if they failed to do their jobs correctly; as determined by the elected body within the state. It's simply a single level indirection of Democracy. The House of Representatives is direct. This was intentional.
What's "indefensible" about this?
And you can amend how the body is elected; hell, you can amend how the president is elected. Also Article V provides for a state "constitutional convention" as a process for initiating changes, bypassing both the Senate and the House.
It's far easier to change a state government than it is the federal government. The states used to be able to recall Senators if they failed to do their jobs correctly; as determined by the elected body within the state. It's simply a single level indirection of Democracy. The House of Representatives is direct. This was intentional.
What's "indefensible" about this?
And you can amend how the body is elected; hell, you can amend how the president is elected. Also Article V provides for a state "constitutional convention" as a process for initiating changes, bypassing both the Senate and the House.