Not knowing we have power doesn't make us powerless. (Dorothy had the power to go home anytime. She had no idea, but that was always the reality.)
You're right, they aren't listening, in part because they have some absurd beliefs about what impeachment is. (They are just people. People who are vulnerable to groupthink and false assumptions. Sadly, they've internalized, and helped to spread, notions that are ridiculous on their face.)
Too few of us are out there demanding impeachment because too many of us are alienated from the reality of our power.
Unfortunately, much of our rhetoric accepts the alienation as "reality." We talk about our government as if it were some alien being. We complain about "them" -- the political "professionals" and officials who are "running things." We tell each other that we are powerless to fight the power elite -- that money runs the show.
It's incredibly easy to fall into the "powerless" trap. We get out of the trap by being clear about the reality of our power and challenging bogus beliefs. We need to talk to each other AND to the men and women who represent us.
As noted, one of the reasons that our Senators and Reps aren't listening is the wrong-headed notions about impeachment so pervasive on the Hill. Almost every statement any of them make about impeachment reflects beliefs that are flat wrong -- so flat wrong that they are EXTREMELY easy to knock down. All we need are a few simple truths and moral principles.
For example, before he won the election, Rep. Keith Ellison had this to say (excerpts from "Will Ellison pursue impeachment?" by Rob Hotakainen, Star Tribune 1/25/07):
. . .Bush "has been running amok" and needs to be reined in: "There is one way that you can truly hold this president accountable, and it's impeachment."
If Rep. Ellison recognizes that Bush is running amok, he has a duty to impeach. His Congressional oath to "support and defend" demands it. There is no doubt that a president who running amok poses an intolerable threat to the Constitution. The danger of a president who has "run amok" is immediate and grave. Any delay is dereliction of duty.
When Ellison took office, he started blathering excuses for refusing to impeach.
. . he said that he's backing proposals to fully investigate Bush and that "a little more homework needs to be done" before Congress can move to impeach.
"I'm a lawyer, you know. I don't think due process is just for some people, it's for all people, including the president."
Might sound reasonable to some, but two simple truths expose the irrationality.
First, there is nothing to investigate. Both Bush and Cheney are "running amok" in plain sight. They are openly and willfully breaking our laws. They declare our War Crimes statute null. Bush nullifies McCain's anti-torture amendment -- a reiteration of existing law -- with a signing statement. They claim the absolute power break any law at will "to protect us" (e.g., illegally spy on us). Their so-called "theory" of unitary authoritarian power is laughable (Didn't hear any members of the committee challenge Spector when he scoffed at it.)
Second, the notion that Bush must be afforded the "due process" of a criminal prosecution is absurd. Impeachment is a political process, not a judicial/legal process.
Criminal procedure and burden of proof are designed to protect the sanctity of our individual civil rights. Our "due process" minimizes the chance that we mistakenly deprive an innocent of those rights.
Impeachment is about protecting the sanctity of our Constitution -- the foundation of ALL our civil rights. The error to be minimized is mistakenly leaving an official in power who is subverting our Constitution. Probable cause to believe an official has betrayed our trust or subverted the Constitution would be more than "enough." Whether an act or a suspicion is "enough" is a political decision. If the public concluded a president's stupidity posed a threat, that would be "enough."
We aren't violating their civil rights when we impeach and remove, whatever the reason. Just as we aren't violating an official's civil rights by voting them out.