Some of this can seem like delaying the inevitable, but as long as it can be delayed, I say, keep on doing it. Who knows what they have planned for in the future—it could be they get this rolling with those who don't opt-out and then it becomes mandatory over time.

In the end, it's less about health or the information they might get through this, but the power of control they hope to ultimately have over you, your life, what you can do, what you can't, etc. They'll talk about it like it's good for you and it will help them to allocate resources, etc., but it's not about that at all. So resist for as long as you can.