The union won't be able to do anything about the ID Card issue, which (no doubt) is an edict from our EU Masters and must be obeyed
Afraid you're wrong there. If it was an EU edict it would apply to EVERY airport, and since the EU have also said that the UKID program may breach privacy laws then you can see that it is NOT an EU directive. This "scam" (not "scheme") is merely something drawn up by Whitehall in an attempt to slowly force the country into having everything from their personal data covering everything from financial/medical records to breast/penis size held on a central database which far too many people will have access to.