It’s fine that you like it and have your own opinion about it, but it’s just that you lose our respect a bit, and seem less credible to us about what makes a good movie a good movie.
This feels very narrow-minded to me, that you would lose respect for a person just because they like a certain movie. At least your being honest, I guess.
See, honesty is fine. But I think my approach is preferable, where I merely imply that because someone else has a different opinion that I respect them less.