According to quindlen how have people attitudes about her behind a product of mixed marriage changed over time

Quindlen's family consisted of an Irish father and an Italian mother. People's attitude toward Quindlen being the daughter of a mixed marriage has changed from it being controversial to being unusual

It changed from being a controversial issue to being an unusual one.

Explanation:

Anna Quindlen, the author of the famous commentary "A Quilt of a Country", writes in her piece that the America of now is a diverse group of multiple ethnicity, all living peacefully under one nation. She wrote this article after the bombing of the World Trade Center by terrorists.

Being a product of a mixed group herself, her mother was Italian and father was Irish, she also feels the same like the other 'outsiders' do. But the attitude and mindset of the people has changed from being controversial to being unusual. For America had grown from being the all White nation to being a haven for the many ethnic and nationalities.