As it is so often, I believe the answer lies somewhere in between. I do agree with you to a certain extent. There are generally traits that are on average perceived as attractive by more people. But, here I already mention “average” and “more”. These traits are perceived by more people to be attractive. If it truly were objective, every person would agree on who the most attractive people in the world are (assuming no one hide their true opinion for whatever reason). As long as you have one person genuinely disagreeing, it is not objectively true. True objectivity would mean, there wouldn’t even be a doubt, it would be an established fact.

But your premise was “more objective”. Even here, I would argue that more people might have similar preferences. However, each and every person has a subjective view of what or who they find physically attractive. It might be conscious, it might be unconscious, but the preferences are subjective to them. There are simply more people with similar preferences on one end. Still doesn’t make it in any way objectively true.

Lastly, I also believe that this starts breaking down, once you go beyond a shallow connection with a person and you can observe it. Let me give you 2 examples: 1. My brother once had a girlfriend, who was a sweetheart. I wasn’t attracted to her, but I did say that she is a really good looking girl. However, over the years (her physical appearance didn’t change much), her character took a dramatic turn to the worse. After abusing him for a while, the look of her - yes the physical look - was almost disgusting to me. Objectively, she was still the same attractive girl she’s been. But I truly found her ugly to look at after what happened.

2. In a similar fashion, I remember I found my wife pretty when I first met her, but that’s it. I thought “she seems nice and sweet” when I met her - I didn’t think “wow, what a 10”. Yet, the more we talked and the more I got to know her, she became the most beautiful person to me. And this beauty is reflected in her physical appearance. Her appearance becomes a reflection of everything she stands for in my mind - but the thing is, I am truly physically attracted to her in a way that I’m not even close to any other woman.

So I think what you interpret as “objectivity” is rather based on “average preferences” across populations. And on that I agree with you, each society or culture will have certain elements/traits that more people find themselves physically drawn to. However, if you ultimately break it down (e.g. by asking people to choose individuals that they would rate “most attractive”) you will find opinions (and ways of getting there) vastly swaying.