It reads like a specific genome would lead to deterministic outcomes. It does not. Life is messy.

Most Down Syndrome people have happy lives, some can even leave alone and have an independent daily live.

Life expectancy is up to 60 years.

Yet in Iceland „Democratization“ of genetic diagnosis lead to basically 0% Down Syndrome kids.

Where does this stop? What with someone of a genetic indication of aggressive cancer- life expectancy 55? Abort?

The same (detectable) genetic mutation leads to vastly different lives.