I agree in theory, but yet I have an iPhone, and Apple is managing my biometrics. I do not have Clear, or TSA preCheck, etc. but still my biometrics are in the US database.

So, in practice, I am not sure if that is truly a non-starter for "normies" and even some "techies". I already gave up on my face biometrics living in US.

Your biometrics are in the secure enclave of your specific phone. Apple doesn't have them in a database.