The point you are missing about perks is that you cannot just decide today that anyone called John is no longer entitled to them.
Of course perks can be removed but only a blanket removal (all employees) or because of some form of discipline issue or similar (you have done something wrong)
To select victims on the basis of red/blue, tory/labour, city/united, striker/non striker is fundamentally wrong and could well be classed as a human rights issue.