People right now are chasing "attractive" as defined in an incredibly narrow way, and refusing to even consider someone attractive if they aren't supermodel thin and young.
What people do you refer to? I am sure some people do this, but I see the vast majority of people happily dating or coupled. I am not supermodel thin, and I am not young, but I am considered to be attractive. My sister is supermodel thin and tall, but she is not young and she is considered to be attractive. I have friends of various ages and sizes and shapes and every single one is considered attractive, if not by everyone, at least by her SO. I don't personally know anyone who would fit into your statement, and I would venture a guess that physical attractiveness is very important to most of my friends.
Of course I don't mean everyone
. But the Dear Abby poster clearly has a very limited view of what is attractive, and wishes that women "be aware of it". And he's not the only complaining that there are so few 10s around.
There is a difference between, "My partner must, first of all, be 'very' attractive," and "my partner must be attractive to me
." Of course we don't expect people to spend their lives with someone who repels them sexually. What the current problem is, is that many people are unnecessarily defining "attractive to me," as "must look like the folks in PEOPLE Magazine". Which is why the Dear Abby poster finds himself unable to find women to meet his standard. He is using a very objective standard ("so thin, so wrinkle-free, so muscular"), not a subjective one.
Venus193 linked to a very interesting article, that studies show that the more people are exposed to "beautiful people" images (which are, in most cases, highly doctored anyway), the less attractive they find the people around them in real life. This is, I think, causing a lot of heartache and frustration for people such as the Dear Abby poster. He's not really asking, "Where can I find a woman who keeps herself in good shape," (answer, as Abby says, is try your local gym or location where active people hang out,) it's "where can I find a Megan Fox lookalike? Because I am entitled to nothing less."