We are just trying to figure out if single women over 30 are unrealistic and overly selfish. Unfortunately you have taken on the role of proving whether it is true or not. You just happen to fit the demographic of the OP's study and you have said the most on the topic. You are the authority.
Women don't have to prove anything. There is not a shortage of mature, secure men in the world for them to choose from.
If men who are insecure and selfish see women as picky they can gripe about it all they want. Doesn't make it true, just makes those men complainers.
Why are those men worried about women over 30 with kids rejecting them?
Either those men can't get younger available women or those men are older than 30, never married and awkward.
Now prove those men aren't