Now just wait for some strange shift in power. I hope I do not wake up in ten years, leave my house and am welcomed by the authorities (maybe the Evocops), because my subpar DNA didn't pass some unit test.
It's pretty much the same story with milder stuff like insurance. If companies can make money by offering discounts for people with genes they like, the insurance company not having your DNA isn't going to make your insurance any cheaper. Or employment, enough people will share their DNA that it becomes a necessary step towards getting the job.
The consequences all flow from allowing society to become hell, not from sharing the DNA.
Because one requires instating mass testing while another requires just gaining permission to an existing treasure trove, albiet a subset.