Why women always feel Insecure?

I interacted with numerous women working and living as single parent but they always feel a particular type of fear from male chauvinism and stalking. I feel couple life is always better as woman is created to help grow better society but criminals are destroying targeting women for sexual exploitations. Share your views how to spread education honouring women. are dirty presentations of women in films affecting men and male youths sexual orientation towards women thus leading to crime and outlook?