Impeachment means that he wouldn’t be able to ever hold office again. Wouldn’t receive his pension. Would possibly forgoe his lavish lifestyle that we pay for.
Simply put, it would put shackles on the man so he couldn’t harm us again.
If he was impeached. But now that he’s out of office, he cannot be impeached anymore. Therefore, I’ll settle for a perp walk, a conviction and some jail time (I know, I’m dreaming here).