"Objectification" is just a clinical and negative way to describe normal male sexuality. ie, that physically beautiful women are sexually attractive.

In my book objectification means presenting women as walking sexual organs, bodies of flesh that one needs to conquer, nothing more. Many of pornographic content nowadays do this. Sexuality is not a problem, sexism is.

I mean your last point is fine, the problem is when the Overton window of what "normal male sexuality" is shifts towards violating other people's boundaries, or diminishing them as people beyond how it affects men's arousal.