I can identify too with the 1-place versus 2-place function analogy. Where I part company from the womanizers I've known though and that I had in mind with my comment is that even if I think of a generic "desirable woman", that's just a placeholder for a real, living, breathing autonomous agent. The womanizers, or the more sociopathic ones, at least, think of it as a placeholder for something to have sex with, which brings us back to the question of objectification and not respecting the agency of other people. I won't say that I don't sometimes succumb to what I'm deploring, but I try to catch myself and to do it less frequently.