I agree that wasting time in not a virtue. Where I would disagree, however, is that in my opinion, the Democrats were morally obligated to impeach Trump because of their oath to the uphold constitution. Trump, is a psychopathic criminal in my opinion and should have never even been allowed to run as a Republican. That they would not get a conviction did not make it a waste of time. He will be indicted soon, I believe, on evidence collected in part by the impeachment investigation. The fact that the Republicans would block conviction was a foregone conclusion, I think, but it wasn't a waste of time. Trump will go down as the worst person to hold the office, hopefully, forever.
You are not worth something as a person because you are conservative. You are worth something because you are a human being. Only someone without sin should judge you.