I feel very sorry for all those poor people that suffered so much because of the JW policy. The doctrine is that a christian should not get involved in politics. What does that mean? And I do not mean the JW explanation. It there is a fight between 2 people in the street, I will try not to get "involved". This does not mean I reject the people involved or the rules of the game but it is simply not my fight and will not become part of it.I will not actively participate in the fight.
By refusing to buy a card the person actually takes a political stance: he rejects/disobeys the ruling government. The same government that demands you to pay taxes and to obey their laws. You carry a passport (or identity card or this MCP card) which is issued (and owned) by the government of that country, which is used to identify oneself as a citizen of a country. To buy that card is in my view not a means to express your political preference but a sign of obedience to the law of the government. It is not an act of worship (involvement).
It is very very sad that the organisation has abused the situation to promote their doctrines whilst endangering the lives of their members.