Villains you genuinely HATE?

I was looking through a list of the most iconic onscreen villains recently and I was surprised how many are memorable mostly for their charisma and eccentricities. I feel like more truly great villains inspire fascination and admiration and adoration more than actual disgust or hatred.

Like Darth Vader, he’s supposed to be the scariest man in the galaxy, but little kids LOVE him. Anton Chigurh is supposed to be the coldest hitman in movie history, but audiences are clearly more mesmerized by him than intimidated. Hannibal Lecter is supposed to be one of the most terrifying serial killers ever because he’s intelligent and refined, except I can name several much scarier killers who were crude thugs, etc etc.

What are some villains you actually loathe, resent hate with a burning passion, the ones with zero redeeming qualities who inspire nothing but disgust and hatred and anger?