Biometric ID card don't add that much to classic ID with photo we have since dozen years. A nationalist parti don't need absolute proof to jail peoples, justice is not their concern. In contrary fair justice need such details because you can't condamn without solid proof, fingerprint or DNA.
Now the danger is much more in paiment method, phones, and ... internet. As tyran I would first look on internet or listen phone about peoples opinion, then would look about paiements made or phone call to track a guy, once catched biometric ID would not do any difference with a classic pass appart in rare case.
In brief the real danger for our liberty is much more hiden and pernicious than the biometric pass wich is only an amelioration of what existed during last era. Phone in particularity extend to all-in-one communication center, soon you'll be even able to pay with it. The problem is it work both sense, you look the world but it keep an eyes on you also. Opinion, location, paiements. All your private life tracked permanently. With the total disparition of real money (logical evolution) you would not be able to even take a bus bribe someone and hide in such world.