a 40 year old woman who's never been married nor started a family is a huge red flag .. if nobody wants to marry you or have kids with you by age ~35, there's typically a reason why
You fail to appreciate the number of women who can't actually have kids. It's a lot higher than you think and in a city of 10 million it's a significant number.
And a divorced woman that can't keep a marriage and family together is equally a huge red flag. So yeah dealing with women in general means dealing with red flags. If you have a choice why would you take the one that comes with extra baggage?
This goes for most, but not all, bachelors of that age too. Some are still single & childless by choice but many cant find anyone decent that wants to be with them or raise kids with them
As I said I would have far more respect for a man if he accepts he will be alone and gets on with things than a pathetic sad sack that latches onto whatever woman he can just so he isn't lonely.