no should not be the women be blamed but only men.....
a human being has 46 pairs of chromosomes and the 23 pairs of chromosomes comes from the male and another 23 from female 
the chromosome pair in male is XY
and the one with female is    XX
so if a male baby is born XY and female XX so it is ony the Y chromosome  that decides the sex of the baby Y chromosome occurs  ony in male.....