I don’t like the implication that singles are somehow to blame for their single status. Singles have it hard enough! I know a number of single girls in their 20’s who aren’t being “redt” shidduchim because they are from divorced homes, or don’t want to support learning boys, or are not size 2. They are dying to get married, but no one wants to give them a chance. Now add to that pain by saying that these girls made a choice!
Of course they made a choice. They choose to look for something extremely rare (a boy who is a “yeshivish” Ben Torah who does not want to be supported, or a boy that can not reject out of hand due to his huge “list”). Blame that on society that pushes boys to be supported.
Then their parents (or the girls themselves) reject the boy they are actually looking for (a Ben Torah who is working) because he is working or YU type.
Of course you can’t generalize, but in many cases it is the choice made.