nobody is saying that we don't have the biological urge to attract, and reproduce with, biological partners.
what we're saying is that the definition of attraction is made up by society. we live in a patriarchal society, and the norms and values of that society reflect that.
so, yes, biology prompts us to be attractive.
deciding that a tan = attractive is because of society NOT biology.
There is a lot of 'science' on both sides of the argument, but women being weak & looking for strong men is a realtively modern & western thing.
Examples of women ebing strong, and/or not looking for big, strong men.
The legendary cave dwellers (actually many of them were nomadic or lived in tents etc) - men were expected to be fast, lithe. Women did a lot of planting, gathering etc so likely to be muscular & strong.
Modern non-westernized society - women carry water & tend fields. Manual, difficult work.
Pearl divers - requiring immense stamina to dive (with no apparatus) to depth & hold breath - done by women. Often results in bad scarring of the arms through reaching through rocks to get the oysters.
Fat on women is attractive & they are force fed to gain wieght. Men wear visible wealth and gain weight to be attractive. No muscles to flexx and make the babes swoon.
So, wear whatever you want, I have no judgement to make, except it tells me something about how you like to dress. I won't think you are better or worse for it. You probably just want to feel/be attractive, without specifically trying to attract a mate. You just want it to be known that you could if you wanted to.
But don't claim that biology hard wired you to wear heels & a push-up bra.Society has taught you that. If you had grown up in a different society, you might be trying to look shorter & flat chested.