why won't women engage with men?

listening to what women say about how their attraction to men is that very few men actually come off as instantly attractive and the majority requires women talking to the men and getting to know them.

while that is all fine and dandy, what I don't understand is women refusing to engage with men that do not meet this narrow threshold of being instantly attractive.

if my attraction was like this, dependent on the personality of the individual, I would approach it by actually trying to talk to the people and make an assessment if the person is truly unattractive or is attractive.

but women who say that for them attraction is something of a slow burn also say they won't actually engage with any man that doesn't fit this slim margin of instantly physical attraction. why is that?