It has nothing to do with moralfaggotry and everything to do with being annoying.
Regarding the impeachment, it won't happen because deep down most of these Capitol critters know that they're opening one of the scariest Pandora's Boxes of bullshit imaginable for them if they do it. It's theater and appeasement/red meat for their respective bases. Everyone should be paying the fuck attention to what they're doing besides have an autistic anti-popularity contest on the floor of the Senate, because this is fucking distraction - amusing distraction, but distraction nevertheless.