Q: Why are men only attracted to a woman’s breasts?
A: They aren’t!
Men are known to respond more to “objects” than women do, and that includes breasts, eyes, skin, buttocks, legs, vagina, and everything else. But men also respond to the whole person, just as women do.
Women are known to respond more to “the whole person” than men do. But woman also respond to “objects,” including the penis, buttocks, muscles, etc.
Some men respond more to the whole person than to any objects. Some women respond more to objects than to the whole person.
Since you couldn’t possibly have interviewed all men, I’ve got to assume you’ve just run into some pretty committed “breast men.” But even if you ask them, and if you believe what they tell you, I’m sure they will tell you that they like, and respond sexually, to a lot more about women than just their breasts!
It’s all a matter of degree and everyone is different.
PS – The most exciting thing to a man is a woman who wants them sexually.