As a point of information, ..... While anyone can be a carrier of Tay-Sachs, the incidence of the disease is significantly higher among people of eastern European (Ashkenazi) Jewish descent. Approximately one in every 27 Jews in the United States is a carrier of the Tay-Sachs disease gene.
Essentially, this mother would prefer to disinherit her heritage. I have the greatest respect for the Jews. They are proud of their heritage and tradition. More importantly, they cherish their heritage, both good and bad. This woman should devote more time to embracing the "gift" she has received from God, rather than regretting it.
There is something a little exploitative about what she's doing here. Some parading of her talents and emotions and opinions and anger with a long resume of her credentials affixed (Go here, for example)-- a public display of things most of us would want to keep private.
But I suspect she has some ambivalence about what she should do and how she should feel and a lot of things are going through her mind now. She felt like this at the time and couldn't resist writing about it and sending it in to be published. How she'll feel about it tomorrow or the next day, I couldn't say.