The world is superficial about these things. It isnt right. Mostly we cant change it. In small ways we can choose to not participate.
All that said, just one guys opinion here: its a rare person who can not be made attractive, who can not make himself, or herself, very attractive.
Use your television, look for them, you can find faces which should be ugly, but somehow, with grooming, attitude, fitness, whatever, people alter the impact and impression of isolated features to make themselves intriguing. The same with our bodies: we can with fitness, grooming, posture, attitude, manner, and more, come off as interesting and compelling persons despite faults.
Of course, nothing trumps being a genuinely intriguing person becoming a person who infatuates, or charms, or attracts, or whatever, because of what we do, how we do it, how exciting and inviting it might be. Maybe for one of us, it is humor, another sports, another creativity, another authority, whatever, we can do it.
We should never underestimate the value of fitness and grooming when dealing with the shallow ways in which people respond. As a man who has done this for decades, at times allowing myself to slip, at times pulling it back together, through decades of aging, I assure you many people in general will be reasonably attracted if Ive done my work, and inevitably I will become a non-person if I let myself go.
Even as a very aged person, maybe especially as a very aged person, I can be a non-person, or experience persons being attracted to me, truly, genuinely controlled by my choices as to how I will appear and seem.
Now, again, all that said, none of this is going to get me treated like a movie star in a room of 20 year old twinks in LA. Im not talking about being able to enter a room and have everyone drop. Im only discussing getting treated very well by the general public, maybe having some one nice person come up on occasion and make conversation; maybe now and then, someone compliments my appearance. I talking about getting one attractive lover, not an army of them or maybe a good job offer and invitations to some social events. Im talking about making oneself an appealing enough person that people might want to be around you.
If that is sufficient enough a goal, Im here to say, its a rare, rare, person who can not be made attractive.