Chymee “Yes, it certainly DOES explain”…
I think what Joseph means is that if you have 100 boys and 100 girls. All the boys are happy to marry, but 20 girls are like you described. How many will get married.
You make it sound like 100 boys will get married and 80 girls, and that’s why there are lots of unmarried girls and no unmarried boys.
But obviously as each boy marries only one girl, if the girls are being picky then there will be a corresponding number of unmarried boys.
Therefore your points don’t explain why there is a shidduch crisis for girls and not for boys.
But are you serious that girls aren’t serious about getting married? My impression was they’re all desperate to ring all their friends with the good news before their friends ring them and make them feel older.