The UK ID card will not be compatible with airport ID systems unless the latter are completely replaced. Citizens will not be required to carry the UK ID card (mind you, it's also supposed tp be voluntary) so you will therefore have to have your airport card to obtain entrance. Given the checks we have to go through to obtain the airport ID card, is the infringement of our rights going to make any difference to security?
It's easy to pick on us, airport security is headline stuff, but we should resist. happily, if you look around, resistance is growing. I won't go without a fight.