they may not come out and say it, but many really do long for the Barbie... perhaps it has more to do with fantasy...
I wouldn’t say “barbie”, I’d say someone they find attractive. Whether that looks more or less like a barbie I am sure varies as to what that particular guy considers to be attractive.
not every attractive woman a guy looks at or might think about is automatically a “barbie” or even considered by a guy to be “a barbie”. If you want to put any kind of term on it other than “attractive”, we already have a word for it, and that word is “hottie”. Hotties are all shapes and sizes, not limited to to the proportions and colorings of barbie.